Chemistry

Question 1

Which subatomic particles can be found inside the nuclei of an atom?

Answer 1

Protons and Neutrons

Question 2

Relative mass of a Neutron

Answer 2

1

Question 3

Relative mass of a Proton

Answer 3

1

Question 4

Relative mass of an Electron

Answer 4

Very small

Question 5

Relative charge of a Proton

Answer 5

+1

Question 6

Relative charge of a Neutron

Answer 6

0

Question 7

Relative charge of an Electron

Answer 7

-1

Question 8

What is the atomic number?

Answer 8

The number of protons in an element

Question 9

What is an isotope?

Answer 9

Atoms of the same element with the same number of protons but a different number of neutrons

Question 10

When does an atom turn into an ion?

Answer 10

When it loses or gains electrons

Question 11

Negatively charged ion

Answer 11

When an atom gains one or more electrons

Question 12

Positively charged ion

Answer 12

When an atom loses one or more electrons

Question 13

What are Group 1 elements also known as?

Answer 13

The Alkali metals

Question 14

Are Group 1 metals very reactive?

Answer 14

Yes

Question 15

Group 1 elements

Answer 15

Lithium, Sodium, Potassium, Rubidium, Caesium, Francium

Question 16

What are Group 7 also known as?

Answer 16

Halogens

Question 17

Group 7 elements

Answer 17

Fluorine, Chlorine, Bromine, Iodine, Astatine, Tennessine

Question 18

Do the melting and boiling points increase or decrease down Group 7?

Answer 18

Increase

Question 19

Is Lithium the most reactive element in Group 1?

Answer 19

No, reactivity increases down the group