atoms and elements Flashcards
7 questions
1
Q
What is the relative charge of a neutron? and relative mass?
A
0 and 1
2
Q
What is the relative charge of a proton? and relative mass?
A
+ and 1
3
Q
What is the relative charge of a electron? and relative mass?
A
- and 0
4
Q
Explain the term “isotopes”
A
different forms of the same element with a different amount of neutrons
5
Q
TOF? Most of the mass of an atom is located in the nucleus?
A
true
6
Q
Why do atoms have no charge?
A
atoms have the same number of protons and electrons
7
Q
Why is RAM of chlorine and copper not a whole number?
A
chlorine has more than one isotopes and RAM is an average
8
Q
How many times is the radius of an atom bigger than the nucleus?
A
10000
