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An element has 2 electrons in its N shell.
State its position in periodic table.
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An element has 2 electrons in its N shell.
Is it a metal or a non-metal?
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Answer the following in respect of element \[\ce{_16^32S}\].
Give its electronic configuration.
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Answer the following in respect of element \[\ce{_16^32S}\].
To which group and period does it belong?
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Answer the following in respect of element \[\ce{_16^32S}\].
Give its formula with hydrogen.
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Study the flow chart and give balanced equations with conditions for the conversions A, B, C, D and E.
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Match the atomic number with the following:
A rare gas.
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Match the atomic number with the following:
An element of group 2.
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Give reason for the following:
Inert gases do not form ion.
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A group of elements in the periodic table is given below (Boron is the first member of the group and Thallium is the last).
Boron, Aluminium, Gallium, Indium, Thallium
Answer the following question in relation to the above group of elements:
If the electronic configuration of aluminium is 2, 8, 3, how many electrons are there in the outer shell of thallium?
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How many atoms of each kind are present in the following molecule:
Chlorine
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How many atoms of each kind are present in the following molecule:
water
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How many atoms of each kind are present in the following molecule:
carbon tetrachloride
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How many electrons are required or released by each atom in chlorine to attain the nearest noble gas configuration?
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How many electrons are required or released by each atom in water molecule to attain the nearest noble gas configuration?
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How many electrons are required or released by each atom in carbon tetrachloride to attain the nearest noble gas configuration?
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The one which is composed of all the three kinds of bond.[ionic, covalent and coordinate bond]
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Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is a metal.
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Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is chemically inert.
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Elements A, B and C have atomic number 17, 19 and 10 respectively.
Write down the formula of the compound formed by two of the above elements.
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