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Chemistry Chapter 4 Review Test 2
Test Description: Atoms and bonding
Instructions: Answer all questions to get your test result.
1) In the chemical formula for an ionic compound, which item is written first?
A
The negative ion
B
The charges
C
The positive ion
D
The subscripts
2) Electrons involved in bonding are the ______________
A
Positively charged
B
Neutrons
C
Valence electrons
D
Protons
3) What suffix do you put on the end of name of the negative ion?
A
-ful
B
-gen
C
-ate
D
-ide
4) Which of the following is a property of an ionic compound?
A
They have low melting points
B
They have low boiling points
C
They contain no charged particles
D
They form hard, brittle crystals
5) Which of the following best describes a metal crystal?
A
Positive metal ions surround by free flowing valence electrons
B
Metal atoms held together by covalent bonds
C
Metal stores held together by ionic binds
D
Neutral metal ions surrounded by valence electrons
6) The atomic number of an element is based on the ---------
A
The sum of the protons and neutrons
B
Number of neutrons in the stim
C
Number of protons in the atom
D
Number of electrons around the nucleus
7) A mixture of 2 or more metals is called a(n) __________
A
Metal
B
Alloy
C
Metallic bond
D
Atom
8) What is a double bond?
A
When 2 pairs of electrons are shRed
B
When 1 pair of electrons are shared
C
When 3 pairs of electrons are shared
D
When 2 pairs of electrons are shared between 4 atoms
9) When an atom gains an electron is becomes a(n) _______________
A
Neutral ion
B
Radioactive
C
Positive ion
D
Negative ion
10) Elements is Group 17 of the periodic table have _____ valence electrons?
A
7
B
17
C
8
D
5
*select an answer for all questions
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