5.1.1.5 size and mass of atoms Flashcards

1
Q

Atoms are very small. What is their radius?

A

0.1 nm ( 1 x 10 to the power of -10 m)

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

The radius of a nucleus is less than _/______ of that of the atom.

A

1 / 10 000

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

Almost all of the mass of an atom is the _______.

A

Nucleus

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

What is the mass of protons and neutrons?

A

1

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

What is the mass of electrons?

A

Very small ( almost 0 )

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

Atoms of the same element can have different numbers of neutrons; these atoms are known as _______ of that element.

A

Isotopes

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