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Periodic Table (8.MS-PS1-1)
Test Description: 8.MS-PS1-1
Instructions: Answer all questions to get your test result.
1) Which is the correct chemical symbol for carbon?
A
c
B
C
C
Ca
D
CA
2) What are the elements in the final column of the periodic table called?
A
alkali metals
B
metalloids
C
noble gases
D
alkaline earth metals
3) What are the columns on the periodic table called?
A
periods
B
columns
C
families
D
towers
4) What is special about the elements in the first column of the periodic table?
A
They are highly reactive
B
They are always found alone in nature
C
They are very stable
D
They are all man-made
5) Who is credited with designing the first periodic table?
A
Marie Curie
B
Charles Darwin
C
Dmitri Mendeleev
D
Albert Einstein
6) About how many elements are on the current periodic table?
A
about 250
B
about 15
C
about 530
D
about 120
7) Identify the INCORRECT statement
A
Elements are basic
B
Elements are made of atoms
C
Elements have chemical formulas
D
Elements are pure substances
8) What is the smallest piece of an element that still has the characteristics of that element?
A
compound
B
atom
C
molecule
D
chemical bond
9) Hydrochloric acid is made of hydrogen (H) and chlorine (Cl). How many atoms are in one molecule of HCl?
A
two
B
one
C
three
D
you cannot tell with the information given
10) How many atoms are needed to make the smallest molecules?
A
one
B
two
C
hundreds
D
10
*select an answer for all questions
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