| Question | Answer |
|---|
| the building block of matter | |
| If an element has 4 protons and 5 neutrons, its mass number is ? | |
| the mass of particle is much less than protons and neutrons | |
| p | |
| n | |
| e | |
| tiny particle that is similiar to a proton in size | |
| an object that is built to explain how something else looks or works | |
| A hydrogen atom has 1 electron. In which level is it? | |
| A zinc atom has 30 electrons. To what level are its electrons found? | |
| O- #P 8, #E 8 Mass# 16 What are numbers of neutrons? | |
| Iron- Mass#56 P-26 What are numbers of N? | |
| Na- Atomic# 11 E-11 N-12 What are numbers of P? | |
| Ca- P-20 E-20 N-20 What are mass#? | |
| Au- P-79 mass# 197 E- 79 What are numbers of neutrons? | |
| Cu- P-29 N-35 E-29 What are atomic number? | |
| Ag- P-47 N-61 atomic# 47 mass# 108 What are numbers of electrons? | |
Periodic Table 
The Nine Planets 
Digits of Pi
