Question

I have to match 1-9 with the words listed below

1. made of two protons and two neutrons

2. similar to an electron; positive charge

3. orbits nucleus; negative charge

4. bundle of energy; zero charge

5. found in nucleus; positive charge

6. very unstable; +, -, or zero charge

7. found in nucleus; zero charge

8. negative particle; negative charge

9. atomic energy converted to mass


electron

gamma

neutrino

meson

positron

beta

neutron

proton

alpha

Answer 1

1). alpha (helium nucleus; 2 protons + 2 neutrons)
2). positron
3). electron

4). neutrino ('photon' would be better for this description, but it's not on the list)
5). proton
6). meson

7). neutron
8). beta
9). gamma