Chemical combination ||types

What is the maximum number of electrons that can occupy the principal energy level M of an atom ?

• 32

• 8

• 24

• 18

1S² 2S² 2P⁶ 3S² is the electronic configuration of ____.

• calcium

• magnesium

• selenium

• neon

1S² 2S² 2P³ is the electronic configuration of ___ .

• calcium

• neon

• nitrogen

• chlorine

The stability of noble gases is due to ___ .

• ease of cation formation

• volatility

• zwitterion formation

• octet or duplet electronic configuration

___ is the bond formed between hydrogen and a highly electronegative atom from another molecule.

• Bivalent bond

• Ionic bond

• Hydrogen bond

• Triple bond

The bond associated with the molecular lattice of naphthalene is ___ .

• dative bond

• Van Der Waal's forces

• ionic bond

• basic bond

The bond between cyanide ions and iron(III) in hexacyanoferrate (III) ion is ___ .

• dative covalent bond

• hydrogen bond c

• covalent bond

• bivalent bond

What is the bond in diatomic chlorine gas molecule ?

• Double covalent bond

• Triple covalent bond

• Single covalent bond

• Quadravalent bond

In the formation of ionic bond, Valence electrons are transferred, what happens to the mass number of the element ?

• It is reduced

• It is stabilized

• It is unaffected

• It is destabilised

Chemical reaction occurs among elements because ____ .

• the elements want to attain duplet or octet structure

• the elements want to attain covalent structure

• the elements want to attain triplet structure

• the elements want to attain macromolecular structure