Atomic structure Flashcards
1
Q
Are atoms charged?
A
No- the protons and electrons cancel out.
2
Q
What does an atoms nucleus contain?
A
Protons and neutrons.
3
Q
What is an atomic mass?
A
The atoms protons + neutrons.
4
Q
An atoms electric structure is 2,8,1. What category is it in the periodic table?
A
Group 1- sodium.
5
Q
What is a ion?
A
A charged atom
6
Q
What is a noble gas.
A
A gas with a full outer shell.
7
Q
Are noble gases reactive.
A
No as they have no need to fill their outer shells.
8
Q
When does a atom become an ion?
A
When electrons are added or removed, giving the atom a charge
9
Q
An atoms atomic number?
A
Number of protons
10
Q
Why are atoms charged?
A
Becuase they’ve lost or gained electrons.
11
Q
What does group 0 represent in the periodic table?
A
Noble hases
