Match these items.

1. Ca

2. H2O

3. nuclear decay

4. nuclear synthesis

5. η

6. positive charge

7. e

8. number of protons in nucleus

proton

atomic number

element

compound

fission

electron

neutron

fusion

- - 'Ca' (Calcium) is an element.

- - The proton has a positive charge.

- - Nuclear fusion results in the synthesis of atoms of new elements.

- - H₂O (water) is a chemical compound.

- - Nuclear fission is a decay of the nucleus.

- - The atomic number of an element is the number of protons

in each atom of it.

- - I suppose you're using the Greek letter η ('eta', not 'nu')

to represent the neutron.

- - I suppose you're using ' e ' to represent the electron.