Topic 2 Atomic Structure

Question 1

What is a protons relative mass?

Answer 1

1

Question 2

What is a neutrons relative mass?

Answer 2

1

Question 3

What is an electrons relative mass?

Answer 3

1/1840

Question 4

What is a protons relative charge?

Answer 4

+1

Question 5

What is a neutrons relative charge?

Answer 5

1

Question 6

What is an electrons relative charge?

Answer 6

-1

Question 7

Where are protons found?

Answer 7

Nucleus

Question 8

Where are neutrons found?

Answer 8

Nucleus

Question 9

Where are electrons found?

Answer 9

Outer Shells

Question 10

What is the mass number?

Answer 10

Total number of protons and neutrons in an atom (the top number of an element)

Question 11

What is the atomic number?

Answer 11

Number of protons in an atom (the bottom number in an element)

Question 12

What is an element?

Answer 12

Substance that has ONE type of atom and can’t be broken down into anything simpler

Question 13

How do you work out the neutrons in an element?

Answer 13

mass number - atomic number = neutrons

Question 14

How do you work out the protons in an element?

Answer 14

The same as the atomic number

Question 15

How do you work out the electrons in an element?

Answer 15

The same as the atomic number

Question 16

What is an ion?

Answer 16

Atoms with a charge (electrons can change the charge)

Question 17

What is a cation?

Answer 17

Ions with positive charges

Question 18

What is an anion?

Answer 18

Ions with negative charges

Question 19

What is an isotope?

Answer 19

Atoms that have the same number of protons but different neutrons (so different mass)

Question 20

What is RAM?

Answer 20

The calculation to find the relative atomic mass (%1 x Power1) + (%2 x Power 2) ÷ 100

Question 21

Calculate the relative atomic mass: A sample of boron contains 19.77% B(to the power of 10) and 80.23% B(to the power of 11).

Answer 21

(10x19.77)+(11+80.23) ÷ 100 = 10.8