Chemical bonding

Question 1

Metallic bonding

Answer 1

Valence electrons move between atoms like glue

Question 2

Ionic bonding

Answer 2

Valence electrons are transferred between atoms forming ions

Question 3

Covalent bonding

Answer 3

Valence electrons are shared by the atoms

Question 4

Ionic bond

Answer 4

electrostatic attraction between ions of opposite charges

Question 5

Positive charge

Answer 5

cation

Question 6

negative charge

Answer 6

anion

Question 7

For main group metals (1,2,13) what is the charge?

Answer 7

Number of valence electrons

Question 8

For non-metals what is the charge ?

Answer 8

(number of valence electrons)-8

Question 9

Ionic compounds are mostly

Answer 9

neutral and solids

Question 10

Coordination number

Answer 10

the number of nearest neighbours around an atom or ion

Question 11

What is the trend in electronegativity in the periodic table?

Answer 11

It increases across the groups and down the periods

Question 12

what bond does a non-metal and non-metal (same e/n) form?

Answer 12

covalent

Question 13

what bond does a non-metal and non-metal (different e/n) form?

Answer 13

polar covalent

Question 14

what bond does a metal and non-metal form?

Answer 14

ionic

Question 15

Why can chlorine only have one single bond

Answer 15

To satisfy the octet rule