Elements Flashcards
1
Q
What’s an Element?
A
A substance made up of atoms that have the same number of protons in their nucleus.
2
Q
What’s the symbol for Iron?
A
Fe
3
Q
What’s the symbol for sodium?
A
Na
4
Q
What are isotopes?
A
-Atoms with the same number of protons but a different number of neutrons.
-This means they have the same atomic number but different mass numbers.
5
Q
Number of protons + Number of neutrons = ?
A
-Mass number of an element
-atomic mass
