Y10 Atomic Structure Flashcards
1
Q
The number of protons and neutrons equals what?
A
The mass number of an atom
2
Q
Isotopes of an element have ?
A
Different numbers of neutrons
3
Q
Which scientist proposed the plum pudding model for the atom?
A
J.J Thompson
4
Q
Draw and label the plum pudding model
A
positive circle with negative electrons
5
Q
Give the relative mass of a proton, neutron and electron
A
Proton - 1
Neutron - 1
Electron 1 / 1840
6
Q
Give the relative charge of a proton, neutron and electron
A
Proton - +1
Neutron - 0
Electron - -1
7
Q
How do you work out the number of neutrons?
A
It’s equal to its mass number
