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STAAR Review: Periodic Table Flashcards | StudBud
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STAAR Review: Periodic Table
STAAR Review: Periodic Table
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#periodictableofelements
Flashcards
10 cards
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Practice quiz
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Questions
10
Answers
1
A horizontal row on the periodic table is called a
period
family
atomic number
group
2
Which of the following are all nonmetals?
As, Se, Rb
V, Cr, Mn
K, Ca, Sc
Se, Br, Kr
3
Reactivity of an element is due to its
valence electrons
mass
period #
energy levels(shells)
4
Helium has 8 valence electrons.
False
True
5
Fluorine has ______ valence electrons.
17
7
9
19
6
The most reactive metals are in ________.
Group 18
Group 1
Group 2
Group 17
7
Which of the following is a metalloid?
Ga
Fe
Ge
Se
8
Elements lying along the zig zag line on the periodic table are
nonmetals
metalloids
metals
noble gases
9
Which of the following elements has atomic number 19?
K
Cu
Fe
Kr
10
What are most of the elements in the periodic table?
precious metals
nonmetals
metalloids
metals
