Atoms Flashcards
1
Q
What is the atomic number?
A
Number of protons
2
Q
What is the atomic mass?
A
Protons and neutrons
3
Q
Do atoms possess an overall charge?
A
No, they are electrically neutral
Protons = electrons
4
Q
What mass do electrons have?
A
Negligible mass
5
Q
What mass do protons have?
A
1
6
Q
What mass do neutrons have?
A
1
7
Q
What is atomic mass measured in?
A
Atomic mass units (amu)
8
Q
What are isotopes?
A
- Versions of the ‘same’ atom e.g. Carbon
- Same number of protons & electrons
- Different number of neutrons
9
Q
How many electrons can the first shell contain?
A
2
10
Q
How many electrons can the second shell contain?
A
8
11
Q
How many electrons can the third shell contain?
A
18
12
Q
What are the 4 types of orbitals?
A
- S orbitals
- P orbitals
- D orbitals
- F orbitals
13
Q
How many electrons can S-orbitals contain?
A
2
14
Q
How many electrons can P-orbitals contain?
A
6
15
Q
How many electrons can D-orbitals contain?
A
10
