Important: Atomic Structure Flashcards
1
Q
Relative mass of proton
A
1
2
Q
Relative charge of proton
A
+1
3
Q
Relative mass of neutron
A
1
4
Q
Relative charge of neutron
A
0
5
Q
Relative mass of electron
A
1/ 1835
0.0005
6
Q
Relative charge of electron
A
-1
7
Q
Atomic no. =?
A
No. of electrons
No. of protons
8
Q
Mass no. =?
A
Protons + neutrons
9
Q
No. of protons = ?
A
Atomic no.
10
Q
No. of neutrons=?
A
Mass no. - atomic no.
11
Q
No. of electrons= ?
A
Atomic no.
12
Q
Definition of isotope ( 2 things )
A
- Atoms with the same no. of protons but different no. of neutrons
- Atoms of the same element with same atomic no. but different mass no.
13
Q
Cations= ?
A
+ve = loss of electrons from neutral atom
14
Q
Anions=?
A
-ve = gain of electrons to neutral atom
