Elements Flashcards
1
Q
What does the atomic number tell us?
A
How many protons there are in an atom, consequently tells you how many electrons there are too.
2
Q
Why is the atomic number unique?
A
Because no two elements have the same number of protons.
3
Q
What is the mass number?
A
The mass number is the total number of protons and neutrons in the atom.
To find the amount of neutrons in an atom, subtract the atomic number from the mass number.
4
Q
What does each element have a different number of?
A
Protons
