Atoms elements compounds and mixtures Flashcards
1
Q
Who thought of the plum pudding model?
A
Thomson
2
Q
What is a protons relative mass?
A
1
3
Q
What is neutrons relative mass?
A
1
4
Q
What is an electrons relative mass?
A
Very small
5
Q
What is a protons relative charge?
A
+1
6
Q
What is a neutrons relative charge?
A
0
7
Q
What is an electrons relative charge?
A
-1
8
Q
How many electrons go on the first outer shell?
A
2
9
Q
How many electrons go on the next 2 layers of the outer shell
A
8
10
Q
35
CL—How many protons and electrons?
17
A
17
11
Q
35
CL—How many neutrons?
17
A
18 (35-17)
12
Q
23
Na—What number is the mass?
11
A
23
13
Q
23
Na—What is the atomic number?
11
A
11
