When an atom loses a valence electron, it becomes a(n) _____________ ion.
positive
negative
neutral
polyatomic
3. Multiple Choice
45 seconds
1 pt
When an atom gains a valence electron, it becomes a(n) _____________ ion.
positive
negative
neutral
polyatomic
4. Multiple Choice
45 seconds
1 pt
If an element has 3 valence electrons, what charge will likely form on its ion ? Hint: It will lose those electrons. What happens to the charge when it loses 3 electrons?
+3
+5
-3
-5
5. Multiple Choice
45 seconds
1 pt
Nitrogen will ____ valence electrons when forming an ionic bond.
gain 1
lose 1
gain 3
lose 3
6. Multiple Choice
30 seconds
1 pt
A chemical symbol that is surrounded by dots that represent elements is a....
electron dot diagram
valence electrons
Bohr Model
7. Multiple Choice
30 seconds
1 pt
A model of an atom that shows all of the electrons in their energy levels (shells) is called
electron dot diagram
valence electrons
Bohr Model
8. Multiple Choice
30 seconds
1 pt
This is the force of attraction that holds atoms together
force of the universe
gluey bond
chemical bond
9. Multiple Choice
45 seconds
1 pt
Ionic bonds form between two ions that have
ionic compounds
negative charges
positive charges
opposite charges
10. Multiple Choice
30 seconds
1 pt
The force of attraction between two oppositely charged ions
ionic bond
strong force
positive/negative force
11. Multiple Choice
30 seconds
1 pt
A proton has what charge?
positive
negative
no charge
it depends
12. Multiple Choice
30 seconds
1 pt
An electron has what kind of charge?
no charge
positive
negative
it depends
13. Multiple Choice
45 seconds
12 pts
Atoms that gain & lose electrons are called _________
ions
isotopes
radioactive
corrosive
14. Multiple Choice
10 seconds
1 pt
Two or more atoms held together by a chemical bond is called what?
A molecule
A molecure
15. Multiple Choice
30 seconds
1 pt
Where are the metalloids / semimetals located on the periodic table?
Blue
Red
Green
16. Multiple Choice
1 minute
1 pt
Where are metals located on the periodic table?
Blue
Green
Red
17. Multiple Choice
1 minute
1 pt
Where are the nonmetals located on the periodic table?
Blue
Red
Green
18. Multiple Choice
45 seconds
1 pt
Atoms are most stable when their outer shell is filled with electrons.
true
false
19. Multiple Choice
1 minute
1 pt
What is the charge of an atom that has lost one electron?
-1
-2
+1
+2
20. Multiple Choice
1 minute
1 pt
What is the charge of an atom that has gained one electron?
-1
-2
+1
+2
21. Multiple Choice
10 seconds
1 pt
What happens when an atom loses an electron?
It becomes Negatively Charged
It remains neutral because the proton also leaves.
It becomes Positively Charged
It stays the same.
22. Multiple Choice
10 seconds
1 pt
What happens when an atom gains an electron?
It becomes Negatively Charged
It remains neutral because the proton also leaves.