Bonding

Question 1

Chemical compounds are formed when

Answer 1

Atoms bond together

Question 2

Breaking chemical bonds is a

Answer 2

Endothermic process

Question 3

Forming chemical bonds is a

Answer 3

Exothermic process

Question 4

Compounds have less

Answer 4

Potential energy

Question 5

What are the main types of compounds (2)

Answer 5

Ionic and covalent

Question 6

Ionic substances have…(5)

Answer 6

High melting point, high boiling point, form crystals, dissolve in water and conduct electricity

Question 7

Covalent bonds have…(3)

Answer 7

Lower melting point, lower boiling point, do not conduct electricity

Question 8

Ionic compounds are

Answer 8

Transferring electrons from one atom to another

Question 9

Covalent bonds are

Answer 9

Sharing electrons between two atoms

Question 10

Polarity of a molecule is determined by

Answer 10

Shape and distribution of charge of a molecule

Question 11

Non polar bonds are…

Answer 11

Symmetrical

Question 12

When an atom gains electrons…

Answer 12

It becomes a negative ion and the atomic radius increases

Question 13

Atoms are stable when

Answer 13

They have a full valence shell

Question 14

When atoms lose electrons…

Answer 14

They become more positive and the atomic radius decreases

Question 15

Electronegativity indicates

Answer 15

How strongly an atom of an element attracts electrons in a chemical bond

Question 16

Binding a metal and non metal make

Answer 16

An ionic compound

Question 17

Bonding 2 non metals forms

Answer 17

Covalent bonds

Question 18

Hydrogen bonds exist between

Answer 18

Atoms of hydrogen, oxygen, nitrogen, and fluorine