Structure Of Atoms Flashcards

1
Q

What is the relative mass of protons, neutrons and electrons?

A

Protons- 1
Neutrons- 1
Electrons- 0

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

What is the electrical charge of protons, neutrons and electrons?

A

Protons- +1
Neutrons- 0
Electrons- -1

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

What is the nucleus made of?

A

Protons and neutrons

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

What orbits the nucleus on shells?

A

Electrons

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

What is the atomic number?

A

The number of protons

Theoretically electrons

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

What is the relative mass of an element?

A

The no. of protons + no. of neutrons

Electrons have a mass of 0

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

How many electrons can the first shell hold?

A

2

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

How many electrons can the 2nd and 3rd shell hold?

A

8

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

Whats the equation for relative mass?

A

Relative % mass =
(Isotope % * mass) +
(Isotope % * mass) /
100

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

Why do atoms have no charge overall?

A

The protons and electrons cancel each other out

Neutrons have no charge

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

The gold foil experiment showed?

A

Atoms must have a dense positive center

Most of the atom is empty space

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