Test - Bonding Flashcards
1
Q
- Molecular compounds do not conduct electricity because they
A
Do not break up into ions
Page 9
2
Q
- What is a characteristic of ionic compounds
A
They form hard brittle crystals with characteristic shapes
Page 9
3
Q
- How does an atom of aluminum become an ion
A
It loses 3 electrons
Page 5
4
Q
- The properties of a compound are — the properties of the elements that form it.
A
Different from
Page 2
5
Q
- Which of the following is not an example of covalent bonding.
NaF H2O O2 NH3
A
NaF
Page 22
6
Q
- Which pair of atoms will combine with each other and from an ionic bond Ca and Mg C and H C and O Ca and Br
A
Ca and Br
Page 21
7
Q
- Which is a property shared by most molecular compound
A
Low melting point
Page 9
8
Q
- How many electrons are shared between the hydrogen atoms in a molecule of H2 gas
A
1a
Page 2
9
Q
- Electrons involved in the formation of chemical bonds are called
A
Valence electrons
Page 2
10
Q
- In the chemical formula for an ionic compound which item I’d written first
A
Positive ion
Page 17
11
Q
- A group of covalently bonded atoms that acts together as one charged atom is a —
A
Crystals
Page 22
12
Q
- When an atom gains an electron it becomes a ( positive ) ion
A
F/negative
Page 2
13
Q
- When electrons are ( transferred ) between two atoms, a covalent bond is formed
A
F/Shared
Page 2
14
Q
- The attraction between a positive ion and a negative ion results in a ( covalent ) bond
A
F/anion
Page 2
15
Q
- Chemical bonds form when valence electrons are — between atoms.
A
Transferred / Shared
Page 2
