SOME BASIC DEFINITION
🔵Element are classified as -
A) metal
B) Non-metal
C)metalloids
🔵the element having a tendency to lose electron and form cation, is called Metal.
🔵the element having a tendency to accept electron and form anion, is called Non-metal.
🔵the element exhibits both metallic and non- metallic characteristics is called Metalloid.
🔵the ability of a solid to bend or be hammered into other shapes without breaking is called Malleability.
🔵the removal of impurities like soil sand stones and useless silicates (gangue) from the ores is known as Concentration.
🔵 the process of extracting metal in pure form its ore is known as Metallurgy.
🔵the compound of a metal found in nature is called Mineral.
🔵those minerals from which metal can be economically &easily extracted are called Ores.
IMPORTANT ONE LINER
🔴the most malleable element to be found in the nature - ➡️gold.
🔴the hardest naturally occurring substance is - ➡️Diamond.
🔴the most ductility element to be found in the nature is ➡️gold.
🔴how many elements are present now- ➡️118
🔴how many elements are in natural -➡️ 94
🔴how many elements are in artificial - ➡️24
🔴the first artificial element is - ➡️Technetium (it was isolated by carlo perrier and Emilio segre in 1937.
🔴the element to be found most abundant on the universe -➡️ Hydrogen (H) and Helium (He).
🔴the element to be found most abundant on the earth's surface - ➡️Oxygen.
🔴the metallic element to be found most abundant on the earth's surface - ➡️Aluminum
🔴the metallic element to be found second most abundant on the earth's surface -➡️ Iron.
🔴the non-metallic element to be found most abundant on the earth's surface -➡️oxygen.
🔴the non-metallic element to be found second most abundant on the earth's surface - ➡️silicon.
🔴the element present in the largest amount in rocks and minerals is -➡️ silicon.
🔴the element to be found most abundant on the human body ➡️- Oxygen.
🔴the element to be found second most abundant on the human body - ➡️carbon (c).
🔴the lightest element to be found in the nature- ➡️Hydrogen.
🔴the lightest metallic element to be found in the nature-➡️ Lithium.
🔴the lightest noo-metallic element to be found in the nature- ➡️Hydrogen.
🔴the heaviest metallic element to be found in the nature-➡️ osmium.
🔴the liquid metallic element to be found in the nature-➡️ Mercury.
🔴the liquid non-metallic element to be found in the nature- ➡️Bromine (Br).
🔴the element, which exists in liquid form at room temperature is -
➡️Mercury and Bromine.
🔴the element, which exists in liquid form at room temperature slightly above the room temperature is - ➡️Gallium (Ga) & Cesium (Cs).
🔴the metal which is the best conductor of the electricity ➡️ Silver.
🔴the metal which is the second best conductor of the electricity ➡️ copper.
🔴the non-metal which is the best conductor of the electricity ➡️ Graphite.
🔴the most reactive metallic element to be found in the nature ➡️ Sodium & Potassium.
🔴the most reactive non- metallic element to be found in the nature ➡️ Fluorine & Phosphorus.
🔴the most poisonous metallic element to be found in the nature ➡️Plutonium (Pu).
🔴the group of the most gaseous elements ➡️zero group.
🔴which element having maximum ionization potential (IP)in the nature➡️Helium.
🔴the maximum electrons acceptable element in the nature ➡️Chlorine.
🔴the most electro negative element in the nature ➡️Fluorine.
🔴the natural element having highest atomic weight ➡️Uranium.
🔴Sodium &Potassium metals are kept under kerosene because -➡️these react with air & water.
🔴which non-metal catches fire if it exposed in air ➡️ Phosphorus.
🔴phosphorus non-metal is kept under water because ➡️ these react with water.
🔴the burning metals react with oxygen to produce ➡️Metal oxide.
🔴which of the elements behave chemically both as metal & non-metal ➡️Boron(B).
🔴Gold, platinum, silver &mercury are called ➡️Noble Metals.
🔴which metal is known as metal of the future ➡️Titanium (Ti).
🔴Titanium is called strategic metal, because ➡️it is lighter than iron.
🔴which metal is known as rainbow metal ➡️Iridium.
🔴the chemical name of rat poison is ➡️Zinc phosphide.
🔴How many inert gases are in the modern periodic table ➡️6
*they are helium, neon, argon, krypton, xenon,radon.
🔴Helium gas discovered by ➡️Pierre janssen and Norman Lockyear.
🔴the inert gas found most abundantly in our atmosphere is ➡️Argon.
🔴which gas is also called stranger gas➡️Xenon.
🔴rusting of iron takes place due to ➡️Oxidation.
🔴the metal, used to galvanize iron to protect it from rusting is ➡️zinc.
🔴which is the purest form of iron ➡️wrought iron
🔴when an alkali metal reacts with water which gas is produced ➡️Hydrogen.
*alkali metals are lithium, Sodium, potassium, rubidium, caseium, Francium.
🔴which elements can't displaced hydrogen gas from a dilute acid➡️ copper & mercury.
🔴which elements can displaced hydrogen gas from a dilute acid➡️ Iron & Aluminum.
🔴"925 fine silver "means an alloy of ➡️92.5% ag and 7.5% cu.
🔴the colour imparted by co(ll) compound to glass is ➡️ deep blue.
🔴stainless steel doesn't rust because ➡️chromium forms an oxide layer and protect iron from rusting.
*stainless steel can contain other element such as nickle, manganese, but chromium is the key element which make it rust resistance.
🔴which material is very hard and very ductile ➡️Nichrome.
🔴which metals pollutes the air of a city having large number of automobile ➡️Lead.
🔴ultra pure metal is obtained by ➡️zone refining.
🔴the iron obtained from blast furnace is➡️ pig iron.
🔴aluminum is more reactive than iron but aluminum is less easily corroded than iron, because ➡️oxygen forms a protective oxide layer.
🔴chemical leaching is useful in the concentration of ➡️ bauxite.
🔴blister copper is about ➡️98% cu.
🔴Refining of silver & gold is done by ➡️ cupellation.
Continue...
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🔵Element are classified as -
A) metal
B) Non-metal
C)metalloids
🔵the element having a tendency to lose electron and form cation, is called Metal.
🔵the element having a tendency to accept electron and form anion, is called Non-metal.
🔵the element exhibits both metallic and non- metallic characteristics is called Metalloid.
🔵the ability of a solid to bend or be hammered into other shapes without breaking is called Malleability.
🔵the removal of impurities like soil sand stones and useless silicates (gangue) from the ores is known as Concentration.
🔵 the process of extracting metal in pure form its ore is known as Metallurgy.
🔵the compound of a metal found in nature is called Mineral.
🔵those minerals from which metal can be economically &easily extracted are called Ores.
IMPORTANT ONE LINER
🔴the most malleable element to be found in the nature - ➡️gold.
🔴the hardest naturally occurring substance is - ➡️Diamond.
🔴the most ductility element to be found in the nature is ➡️gold.
🔴how many elements are present now- ➡️118
🔴how many elements are in natural -➡️ 94
🔴how many elements are in artificial - ➡️24
🔴the first artificial element is - ➡️Technetium (it was isolated by carlo perrier and Emilio segre in 1937.
🔴the element to be found most abundant on the universe -➡️ Hydrogen (H) and Helium (He).
🔴the element to be found most abundant on the earth's surface - ➡️Oxygen.
🔴the metallic element to be found most abundant on the earth's surface - ➡️Aluminum
🔴the metallic element to be found second most abundant on the earth's surface -➡️ Iron.
🔴the non-metallic element to be found most abundant on the earth's surface -➡️oxygen.
🔴the non-metallic element to be found second most abundant on the earth's surface - ➡️silicon.
🔴the element present in the largest amount in rocks and minerals is -➡️ silicon.
🔴the element to be found most abundant on the human body ➡️- Oxygen.
🔴the element to be found second most abundant on the human body - ➡️carbon (c).
🔴the lightest element to be found in the nature- ➡️Hydrogen.
🔴the lightest metallic element to be found in the nature-➡️ Lithium.
🔴the lightest noo-metallic element to be found in the nature- ➡️Hydrogen.
🔴the heaviest metallic element to be found in the nature-➡️ osmium.
🔴the liquid metallic element to be found in the nature-➡️ Mercury.
🔴the liquid non-metallic element to be found in the nature- ➡️Bromine (Br).
🔴the element, which exists in liquid form at room temperature is -
➡️Mercury and Bromine.
🔴the element, which exists in liquid form at room temperature slightly above the room temperature is - ➡️Gallium (Ga) & Cesium (Cs).
🔴the metal which is the best conductor of the electricity ➡️ Silver.
🔴the metal which is the second best conductor of the electricity ➡️ copper.
🔴the non-metal which is the best conductor of the electricity ➡️ Graphite.
🔴the most reactive metallic element to be found in the nature ➡️ Sodium & Potassium.
🔴the most reactive non- metallic element to be found in the nature ➡️ Fluorine & Phosphorus.
🔴the most poisonous metallic element to be found in the nature ➡️Plutonium (Pu).
🔴the group of the most gaseous elements ➡️zero group.
🔴which element having maximum ionization potential (IP)in the nature➡️Helium.
🔴the maximum electrons acceptable element in the nature ➡️Chlorine.
🔴the most electro negative element in the nature ➡️Fluorine.
🔴the natural element having highest atomic weight ➡️Uranium.
🔴Sodium &Potassium metals are kept under kerosene because -➡️these react with air & water.
🔴which non-metal catches fire if it exposed in air ➡️ Phosphorus.
🔴phosphorus non-metal is kept under water because ➡️ these react with water.
🔴the burning metals react with oxygen to produce ➡️Metal oxide.
🔴which of the elements behave chemically both as metal & non-metal ➡️Boron(B).
🔴Gold, platinum, silver &mercury are called ➡️Noble Metals.
🔴which metal is known as metal of the future ➡️Titanium (Ti).
🔴Titanium is called strategic metal, because ➡️it is lighter than iron.
🔴which metal is known as rainbow metal ➡️Iridium.
🔴the chemical name of rat poison is ➡️Zinc phosphide.
🔴How many inert gases are in the modern periodic table ➡️6
*they are helium, neon, argon, krypton, xenon,radon.
🔴Helium gas discovered by ➡️Pierre janssen and Norman Lockyear.
🔴the inert gas found most abundantly in our atmosphere is ➡️Argon.
🔴which gas is also called stranger gas➡️Xenon.
🔴rusting of iron takes place due to ➡️Oxidation.
🔴the metal, used to galvanize iron to protect it from rusting is ➡️zinc.
🔴which is the purest form of iron ➡️wrought iron
🔴when an alkali metal reacts with water which gas is produced ➡️Hydrogen.
*alkali metals are lithium, Sodium, potassium, rubidium, caseium, Francium.
🔴which elements can't displaced hydrogen gas from a dilute acid➡️ copper & mercury.
🔴which elements can displaced hydrogen gas from a dilute acid➡️ Iron & Aluminum.
🔴"925 fine silver "means an alloy of ➡️92.5% ag and 7.5% cu.
🔴the colour imparted by co(ll) compound to glass is ➡️ deep blue.
🔴stainless steel doesn't rust because ➡️chromium forms an oxide layer and protect iron from rusting.
*stainless steel can contain other element such as nickle, manganese, but chromium is the key element which make it rust resistance.
🔴which material is very hard and very ductile ➡️Nichrome.
🔴which metals pollutes the air of a city having large number of automobile ➡️Lead.
🔴ultra pure metal is obtained by ➡️zone refining.
🔴the iron obtained from blast furnace is➡️ pig iron.
🔴aluminum is more reactive than iron but aluminum is less easily corroded than iron, because ➡️oxygen forms a protective oxide layer.
🔴chemical leaching is useful in the concentration of ➡️ bauxite.
🔴blister copper is about ➡️98% cu.
🔴Refining of silver & gold is done by ➡️ cupellation.
Continue...
Other posts :https://simplepreparation.blogspot.com/2020/04/indian-states-and-union-territories-in.html?m=1
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