
Warm-up - Periodic Table - February 11, 2020
Authored by Amoy Scott
8th Grade
Used 4+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which pure substance is composed of more than one element?
carbon
gold
water
sodium
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The atomic number of an atom is always equal to the total number of
neutrons in the nucleus
protons in the nucleus
neutrons plus protons in the atom
protons plus electrons in the atom
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement best describes electrons?
they are positive subatomic particles and are found in the nucleus
they are positive subatomic particles and are found surrounding the nucleus
they are negative subatomic particles and are found in the nucleus
they are negative subatomic particles and are found surrounding the nucleus
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Because Carbon cannot be broken down and changed into simpler substances, it is classified as _ _ _ _.
an element
a compound
a mixture
a molecule
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Neon and sodium are examples of
metalloids
compounds
mixtures
elements
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A substance formed when 2 or more elements chemically combine is known as a _ _ _ _.
compound
metalloid
solution
mixture
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Water is _ _ _ _.
an element
a compound
a mixture
a solution
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