From the following list of elements pick the one that best fits each description
ID: 481664 • Letter: F
Question
From the following list of elements pick the one that best fits each description; use each element only once.
(a) an alkali metal,
(b) an alkaline earth metal,
(c) a noble gas,
(d) a halogen,
(e) a metalloid,
(f) a nonmetal listed in group 1A,
(g) a metal that forms a 3+ ion,
(h) a nonmetal that forms a 2 ion,
(i) an element that resembles aluminum.
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Ar
Br
Al
H
K
Ga
Ge
O
Ca
(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
(i)
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Ar
Br
Al
H
K
Ga
Ge
O
Ca
(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
(i)
Explanation / Answer
a) an alkali metal - K potassium
b) an alkaline earth metal - Ca ,calcium
c) a noble gas - Ar, Argon
d) a halogen - Br, bromine
e) a metalloid - Ge , Germanium
f) a non-metal listed in IA group - H , hydrogen
g) a metal that forms +3 ion , Al, aluminium
h) a non-metal that forms -2 ion - O, oxygen
i) the element that resembles Aluminium - ga, gallium
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