Question

Match the following.

1. the number of protons in an atom; a number unique to each element
proton
2. a substance made up of only one kind of atom
valence
3. a positive or negative electrical quality
element
4. the center of the atom
nucleus
5. the path in which an electron travels around the atom
1
atomic mass
6. approximately, the number of protons plus neutrons in an atom
5
shell
7. a subatomic particle with a negative charge
electron
8. a subatomic particle that has no charge and is found in the nucleus
3
charge
9. how many bonds an atom will form
atomic number
10. a subatomic particle which is positively charged and found in the nucleus
neutron

Answer 1

Sure! Here is the correct matching based on the definitions provided:

1. the number of protons in an atom; a number unique to each element — **atomic number**
2. a substance made up of only one kind of atom — **element**
3. a positive or negative electrical quality — **charge**
4. the center of the atom — **nucleus**
5. the path in which an electron travels around the atom — **shell**
6. approximately, the number of protons plus neutrons in an atom — **atomic mass**
7. a subatomic particle with a negative charge — **electron**
8. a subatomic particle that has no charge and is found in the nucleus — **neutron**
9. how many bonds an atom will form — **valence**
10. a subatomic particle which is positively charged and found in the nucleus — **proton**