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Quiz On 5.1-5.2 Part 2
Test Description: Chemistry
Instructions: Answer all questions to get your test result.
1) What is the symbol for potassium
A
Fe
B
K
C
Na
D
Pb
2) What is the symbol for iron
A
Na
B
Rn
C
Fe
D
O
3) Na is the chemical symbol for
A
helium
B
sodium
C
water
D
potassium
4) Pb is the symbol for
A
lead
B
sodium
C
gold
D
radon
5) Ca is the symbol for
A
cream
B
cheese
C
calcium
D
carbon
6) What is the symbol for oxygen
A
Of
B
O
C
On
D
Ox
7) The symbol for radon is Rn, true or false?
A
False
B
True
8) The quantum theory
A
states tiny particles such as electrons do not absorb or release energy smoothly
B
is a measure of the decay rate of a radioactive substance
C
describes electrons as waves circling the nucleus
D
describes electrons as moving in cloudlike regions called orbitals
9) The electron-cloud model
A
describes electrons as waves circling the nucleus
B
is a measure of the decay rate of a radioactive substance
C
states tiny particles such as electrons do not absorb or release energy smoothly
D
describes electrons as moving in cloudlike regions called orbitals
10) The wave-mechanical model
A
is a measure of the decay rate of a radioactive substance
B
describes electrons as waves circling the nucleus
C
states tiny particles such as electrons do not absorb or release energy smoothly
D
describes electrons as moving in cloudlike regions called orbitals
*select an answer for all questions
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