Chemical Bonding

Question 1

Nucleus

Answer 1

Has positive protons and neutral neutrons

Question 2

Electrons

Answer 2

Circle nucleus in shells

Question 3

Atomic number

Answer 3

Number of protons in an atom

Question 4

Mass number

Answer 4

Number o protons plus neutrons

Question 5

Compound

Answer 5

When two or more atoms of different elements have a chemical bond joining them together

Question 6

Octet rule

Answer 6

Atoms will bond together so that each atom attains an electron arrangement with 8 electrons in its outermost shell

Question 7

Ionic bonding

Answer 7

Happens between metals and non metals

Give away or take an electron to fill their outer shell

Question 8

Crystal lattice

Answer 8

Forms from ionic bonding

Question 9

Examples of ionic bonding

Answer 9

Sodium chloride (NaCl) 
Magnesium oxide (MgO)

Question 10

Covalent bonding

Answer 10

When both atoms share electrons to get a full outer shell

Question 11

What happens between positive and negative forces of ion

Answer 11

They attract each other

Question 12

In ionic bonds positive and negative ions…

Answer 12

Are mixed together

Question 13

Single covalent bonds

Answer 13

Occurs when atoms share one pair of electrons

Question 14

Double covalent bonds

Answer 14

Formed when atoms share two pairs of electrons

Question 15

Ion

Answer 15

Charged atom/charged group of atoms

Question 16

Elements

Answer 16

Need to react to achieve full outer shells

Question 17

Ionic compound characteristics

Answer 17

Positive and negative ions 
Solid at room temp
High melting and boiling points 
Soluble in water
Conduct electricity when melted or dissolved

Question 18

Covalent compound characteristics

Answer 18

Consists of individual molocules
Liquid or gas at room temp
Low melting and boiling point 
Insoluble in water 
Do not conduct electricity