Atoms and Elements Flashcards
1
Q
What 2 things that atoms made from?
A
Nucleus
Electrons
2
Q
What is the nucleus?
A
A nucleus is in the middle of an atom it contains protons and neutrons
3
Q
Where does the mass come from?
A
Most of the mass comes from tge necules despite being very small.
4
Q
What are Electrons?
A
Electrons are sub atomic particals that the nucleus in shells.
5
Q
What is a shell?
A
A shell is what an atom has that keep electrons orbiting them they can have multiple shells the first shell always has 2 electron to make it full.
6
Q
What is an element?
A
Element is a substance containg only one type of electron eg copper and iron
7
Q
What desideds what type an atom is?
A
The number of protons in the nucleus
