C1.1 Fundamentals of Chemistry

Question 1

Formula of magnesium oxide

Answer 1

MgO

Question 2

Draw the electron configuration for a magnesium ion

Answer 2

Question 3

Define compound

Answer 3

One or more element chemically bonded

Question 4

Mass of a Proton

Answer 4

1 AMU

Question 5

Define Mass Number

Answer 5

Number of Protons + Neutrons

Question 6

Draw the electron configuration of an oxide ion

Answer 6

Question 7

Explain how a chlorine atom becomes a chloride ion

Answer 7

Gains one electron

Question 8

Formula of magnesium chloride

Answer 8

MgCl₂

Question 9

Define Atomic Number

Answer 9

Number of Protons in the Nucleus of an Atom

Question 10

Explain how a sodium atom becomes a sodium ion

Answer 10

Loses one electron

Question 11

Type of bonding in CO₂

Answer 11

Covalent (between two non-metals)

Question 12

Charge of an Electron

Answer 12

-1

Question 13

Formula of sodium hydroxide

Answer 13

NaOH

Question 14

Draw and Write Electron Configuration of a Sodium Atom

Answer 14

2,8,1

Question 15

Mass of an electron

Answer 15

Next to nothing

Question 16

Mass of a Neutron

Answer 16

1 AMU

Question 17

Define molecule

Answer 17

Group of two or more atoms bonded together

Question 18

Type of bonding in NaCl

Answer 18

Ionic (between metal (Na) and non-metal (Cl)

Question 19

Charge of a Neutron

Answer 19

0

Question 20

Charge of a Proton

Answer 20

+1