Atoms: Electrons,Neutrons,Protons Flashcards
1
Q
What charge does electrons have ?
A
A negative charge
2
Q
What charge does a proton have ?
A
A positive charge
3
Q
What charge does a neutron have?
A
None
4
Q
In an atom, what gravitates around the nucleus?
A
Electrons
5
Q
What does not contribute to an atoms mass, and why?
A
Electrons, because the are very light
6
Q
What are valence electrons?
A
They’re elections on the last shell
7
Q
Protons and neutrons are held by what type of energy?
A
Nuclear energy
8
Q
How do u find the number of neutrons in a atom ?
A
Atomic mass - # protons
9
Q
How do find the number of protons an atoms has ?
A
By looking at its atomic number
10
Q
How do u find the number of electrons an atoms has ?
A
By looking at its atomic number
11
Q
Neutrons make the atom ?
A
Stable
