C4 - Atomic structure Flashcards

1
Q

What is an atom?

A

An atom is a nucleus that is surrounded by electrons.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the nucleus of an atom made up of?

A
  • protons

- neutrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the atomic number?

A

The number of protons in an atom.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the mass number?

A

The total number of protons and neutrons in an atom.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the relative mass of a proton, a neutron and an electron?

A

Proton: 1
Neutron: 1
Electron: 0.0005 (zero)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the charge of a proton, a neutron and an electron?

A

Proton: +1
Neutron: 0
Electron: -1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is an isotope?

A

An isotope is a different form of the same element, they have the same atomic number but different mass numbers.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What happens if an atom loses an electron?

A

It becomes positively charged because it has lost its negativity.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What happens if an atom gains an electron?

A

It becomes negatively charged because it has gained negativity.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is a compound?

A

A compound is a substance that contains at least two different elements chemically combined.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the structure of an atom?

A

The inner shell must have two electrons and any other shells can have up to eight.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly