Atomic Structure Flashcards
1
Q
Relative mass of a proton
A
1
2
Q
Relative mass of a nuetron
A
1
3
Q
Relative mass of an electron
A
1/1836 (small)
4
Q
Mass number
A
Total number of protons and neutrons
5
Q
Atomic number
A
Number of protons
6
Q
What are isotopes
A
Atoms of the same elements with different number of nuetron
7
Q
How do you get the number of protons
A
Minus top to from the bottom
8
Q
Conservation of Mass
A
Mass is never lost or gained in a chemical reaction is is conserved
