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- 1. Multiple Choice
What part of an atom has a mass of 1 and a charge of +1?
Neutrons
Protons
Nucleus
Electrons
- 2. Multiple Choice
Where are electrons found?
In neutrons
In shells
In the nucleus
In protons
- 3. Multiple Choice
What particles have a charge of -1 and a very small mass?
protons
neutrons
electrons
shells
- 4. Multiple Choice
The atomic number is
the number of neutrons
the number of neutrons and protons added together
the number of electrons and protons added together
the number of protons
- 5. Multiple Choice
The atomic mass is
protons and electrons added together
protons and neutrons added together
electrons and neutrons added together
neutrons and electrons added together
- 6. Multiple Choice
How many electrons can fit in the first shell?
1
2
3
4
- 7. Multiple Choice
Elements in group 7 have how many electrons in their outer shell?
1
3
5
7
- 8. Multiple Choice
The period (row) number determines the
number of electrons
number of neutrons
number of shells
number of protons in the nucleus
- 9. Multiple Choice
Why are atoms neutrally charged?
Balanced numbers of protons and neutrons
Equal numbers of electrons and protons
The neutrons have no charge
Atoms always have a positive charge
- 10. Multiple Choice
What element has the symbol N?
Neon
Nitrogen
Nickel
Sodium
- 11. Multiple Choice
What element has the symbol Ca?
Cobalt
Carbon
Copper
Calcium
- 12. Multiple Choice
Isotopes are atoms that have ...
same number of protons but different number of electrons
same number of neutrons but different number of protons
same number of protons but different number of neutrons
same number of electrons but different number of protons
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