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- 1. Multiple ChoiceWhat is an atomic number?The sum of protons and neutrons in an atom.The sum of protons and electrons in an atom.The number of protons in an atom of a specific element.The number of neutrons in a specific element.
- 2. Multiple Choice
The number of neutrons equals...
Atomic number - protons
Protons - neutrons
Electrons - protons
mass number - atomic number
- 3. Multiple ChoiceThe atoms of any given element ____ have the same number of protons.sometimesalwaysnever
- 4. Multiple Choice
Which number shows the atomic number?
2
4.0026
4
HE
- 5. Multiple Choice
Which number represents the atomic mass?
HE
4.0026
2
4
- 6. Multiple Choice
Atoms that have a different amount of electrons than protons
covalent bonds
isotopes
ionic bonds
ions
- 7. Multiple Choice
How many Neutrons are in Neon
10
21
20
30
- 8. Multiple Choice
How many protons are in Neon
10
20
21
30
- 9. Multiple Choice
How many electrons are in Potassium
19
39
20
58
- 10. Multiple Choice
If an atom loses electrons, the charge will be positive.
true
false
- 11. Multiple Choice
A Bromine ion gains 1 electron, which of the following is the correct symbol for a Bromine ion?
Br-1
Br+1
Br+7
Br-7
- 12. Multiple ChoiceWhat is the charge of an atom that has lost one electron?-1-2+1+2
- 13. Multiple Choice
How many total electrons does O-2 (an oxide ion) have?
8
10
6
18
- 14. Multiple Choice
How many total electrons does Mg+2 (a magnesium ion) have?
10
12
14
22
- 15. Multiple Choice
How many total electrons does Na+1 (a sodium ion) have?
10
11
12
22
- 16. Multiple Choice
What is symbol for an ion of Iodine (I) that has gained 1 electron?
I-1
I+1
I-7
I+7
- 17. Multiple Choice
What is the symbol for an ion of Sulfur with 16 protons and 18 electrons?
S-2
S+2
S-8
S+6
- 18. Multiple ChoiceHow many neutrons does the isotope of lithium have?8345
- 19. Multiple ChoiceHow many protons does this isotope of titanium have?48222670
- 20. Multiple ChoiceIn a correctly written symbol what would be located in the "A" position?number of neutronsatomic numbernumber of electronsmass number
- 21. Multiple Choicewhich atom has 4 neutrons?Li-6Li-7Li-8they have the same # of neutrons
- 22. Multiple ChoiceHow many neutrons in C-14?67148
- 23. Multiple ChoiceHow many neutrons does the isotope below have? 89 36Kr533689125
- 24. Multiple ChoiceIf X is the symbol for an element, which of the following two symbols represent isotopes of the same element? I. 7735X II. 7733X III. 8137X IV. 8135 XI and IIIII and IVI and IVI and III
- 25. Multiple Choice
Which element is this?
Nickel
Neon
Sodium
Nitrogen
- 26. Multiple Choice
What is the atomic number of this atom?
2
4
6
8
- 27. Multiple Choice
What is this element?
Beryllium (atomic #4)
Boron (atomic #5)
Carbon (atomic #6)
Nitrogen (atomic #7)
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