The tendency of an atom to gain electrons is ……………..
A) Non-metallic character
B) Electropositive character
C) Metallic character
D) Both B and C
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What are the valence electrons? For s-block and p-block elements show that number of valence electrons is equal to its group number.
Electrons present in the outermost shell of the atom of an element are called valence electrons. 3Li is an s-block element and its electronic configuration is 1s22s1. Since it has one...
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Some cities gain importance as administrative centres while others gain importance as industrial centres.
The rise and fall of the cities depend on its political and cultural graph of events. The process of urbanisation is associated mainly with political and economic development. The rulers play an...
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a) s – sub shell i) Maximum number of electrons is 6, b) p – sub shell ii) Maximum number of electrons is 14
C) a→iii, b→i, c→iv, d→ii
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The tendency of bonded atom to attract the electron pair towards itself is……………
B) electronegativity
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Transfer of electrons from one atom to other atom leads to…………….. bond.
A) Ionic bond
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Match the following: Sharing one pair of electrons — i) Double bond , Sharing two pairs of electrons — ii) Single bond
C) a →ii, b →i, c → iii
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A neutral metal atom becomes dipositive ion by loosing two”electrons. In the same way a neutral non-metal atom becomes
Correct option is D) m2 x2
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The number of electrons present in outer most orbit of an atom is called ……………… electrons.
Correct option is A) valency
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Reduction involves …………… (A) gain of electrons (B) addition of oxygen
Correct Option is: (A) gain of electrons Reduction involves gain of electrons , removal of oxygen , addition of Hydrogen , and decrease in oxidation number.
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Reduction involves …………… (A) gain of electrons (B) addition of oxygen
2 Answers
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