Atomic structure Flashcards
1
Q
What is the atoms central nucleus surrounded by?
A
Surrounded by electrons arranged in shells.
2
Q
The nuclei of all atoms contain
A
Subatomic particles called protons and neutrons.
3
Q
What is the relative mass and the relative charge of a proton?
A
- 1= relative mass
- +1= relative charge
4
Q
What is the relative mass and the relative charge of a neutron.
A
- 1= relative mass
- 0= relative charge
5
Q
What is the relative mass and the relative charge of an electron?
A
- Very small- relative mass
- -1 = relative charge
6
Q
What is the radius of an atom?
A
1 x 10 ^-10 m
7
Q
Energy levels which are further from the nucleus are at a
A
Higher energy than those which are closer to the nucleus.
