atomic stuture Flashcards

1
Q

chemistry definition

A

the study of matter (made of atoms)

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

nucleus

A

protons and neutrons exist in dense core at the centre of atom

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

shells

A

electrons spread out around edge of atom, they orbit the nucleus

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

the number of protons in an atom is known as…

A

the atomic number or proton number (Z)

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

mass number

A

the sum if the protons and neutrons in an atom necleus (A)

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