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Test Description: Tial
Instructions: Answer all questions to get your test result.
1) What is the charge of an electron?
A
positive
B
neutral
C
negative
D
the same as the proton
2) What is the charge of the proton?
A
positive
B
neutral
C
The same as the electron.
D
negative
3) What is the atomic mass of an atom that has 11 protons, 11 electrons, 13 neutrons?
A
24
B
13
C
35
D
11
4) What element has an atomic number 20?
A
lithium
B
calcium
C
phosphorus
D
sodium
5) What element has the atomic number 11?
A
lithium
B
potassium
C
sodium
D
calcium
6) What is the name for the compound KCl?
A
krypton chloride
B
potassium chloride
C
potassium chlorine
D
krypton chlorine
7) What is the molar mass of sodium chloride?
A
22.99 g/mol
B
35.453 g/mol
C
58.44 g/mol
D
78.45 g/mol
8) How many moles are in 116.88 grams of sodium chloride?
A
4
B
2
C
3
D
1
9) What is a metric unit of mass?
A
liter
B
gram
C
psi
D
particle
10) What is an element that has luster, conducts heat and electricity, and usually bends without breaking?
A
metal
B
halogen
C
nonmetal
D
metalloid
*select an answer for all questions
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