Chemistry perodic table Flashcards
1
Q
The elements are organised on the periodic table by increasing….
A
Atomic number
2
Q
subatomic particles that determine the atomic number of an element
A
Protons
3
Q
elements with similar chemical properties occupy the same what
A
group
4
Q
The horizontal rows are and the vertical rows are
A
horizontal - period vertical - group
5
Q
mass number is the average of what
A
elements isotopes
6
Q
describe an atom structure
A
Atoms have a nucleus with a center made up of protons positive particles and netrons which are neutral with no charge the electrons negative particles that move around the nucleus