Across
1
Center of an atom or cell
4
Chemical element in table salt
5
Substance with pH above 7
6
Smallest unit of an element
7
Our home planet
Down
1
Unit of force
2
Precious yellow metallic element
3
Mass per unit volume
Center of an atom or cell
Chemical element in table salt
Substance with pH above 7
Smallest unit of an element
Our home planet
Unit of force
Precious yellow metallic element
Mass per unit volume