Elements Flashcards
1
Q
Can atoms have a different number of protons , neutrons and electrons ?
A
Yes
2
Q
What decides what type of atom it is ?
Protons
Neutrons
Electrons
A
Protons
3
Q
What is it called it a substance only contains 1 type of atom
A
Element
4
Q
What are atoms of each element usually represented by
A
A nuclear symbol
5
Q
What does the atomic number tell us ?
A
How many protons there are
6
Q
What does the mass number tell us
A
Both protons and neutrons
