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