Chapter 2

Question 1

Number of protons known as?

Answer 1

Atomic number

Question 2

Where is most of the mass in an atom?

Answer 2

Nucleus

Question 3

What is the overall charge of an atom

Answer 3

0

Question 4

What are anions

Answer 4

Atoms with more electrons than protons

Question 5

What are cations

Answer 5

Atoms with more protons than electrons

Question 6

What is relative atomic mass

Answer 6

Weighted mean mass of an atom of an element relative to 1/12th of the mass of an atom of carbon 12

Question 7

What is relative isotopic mass

Answer 7

Mass of an isotope relative to 1/12th of the mass of an atom of carbon 12

Question 8

What is the mass to charge ratio?

Answer 8

Relative mass of ion / relative charge on ion

Question 9

What is a binary compound

Answer 9

Contains two elements only

Question 10

What are polyatomic ions?

Answer 10

Ions with atoms more than one element bonded together

Question 11

Ammonium

Answer 11

NH4 +

Question 12

What is the formula for hydroxide

Answer 12

OH-

Question 13

What is the formula for nitrate

Answer 13

NO3 -

Question 14

What is the formula for nitrite

Answer 14

NO2 -

Question 15

What is the formula for hydrogencarbonate

Answer 15

HCO3 -

Question 16

What is the formula for manganite - VII - permanganate

Answer 16

MnO4 -

Question 17

What is the formula for carbonate

Answer 17

CO3 2-

Question 18

What is the formula for sulfate

Answer 18

SO4 2-

Question 19

What is the formula for sulfite

Answer 19

SO3 2-

Question 20

What is the formula for dichromate?

Answer 20

Cr2O7 2-

Question 21

What is the formula for phosphate

Answer 21

PO4 3-