Test - Chemical Bonding Flashcards
1
Q
- Molecular compounds do not conduct electricity because they .
A
Do not break up into ions. NB 22
2
Q
- What is one characteristic property of ionic compounds?
A
They form hard, brittle crystals with characteristic shapes. NB 27
3
Q
- How does an atom of aluminum become an iron?
A
It loses 3 electrons. NB 16
4
Q
- Which element is most likely to gain electrons in a chemical reaction?
A
Bromine. NB 16
5
Q
- If atoms of halogen nonmetal(Group 17)gain one electron, the atoms then have .
A
8 valence electrons. NB 23
6
Q
- What is a double bond?
A
Two pairs of electrons shared between two atoms. NB 19
7
Q
- How does an atom gain electrons?
A
It’s oxidation number. NB 14
8
Q
- Which is a property shared by most molecular compounds?
A
Low melting points. NB 26
9
Q
- What is the correct name for a compound between Magnesium and Sulfur?
A
Magnesium sulfide NB 16
10
Q
- What are electrons that are involved in the formation of chemical bonds called?
A
Valence electrons. NB 21
11
Q
- Ionic compounds are electrically .
A
Neutral. NB 25
12
Q
- In the chemical formula for an ionic compound, which item is written first?
A
Positive ion. NB 17
13
Q
- What is the correct name for the compound between phosphorus and chlorine?
A
Phosphorus trichloride. NB 16
14
Q
- Chemical bonds form when valence electrons are between atoms.
A
Transferred and shared. NB 27
15
Q
- Why do noble gases rarely form compounds?
A
Because they are already stable - their outermost energy levels are already complete. NB 24
