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Identify the period or group number described for the following case: a) contains elements C, N and O b) start with helium c) Contains the alkali metals d) end with neon
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Identify the period or group number described for the following case:

a) contains elements C, N and O

b) start with helium

c) Contains the alkali metals

d) end with neon

User Parthi
by
8.6k points

1 Answer

4 votes
a) Period 2.
b) Group 18.
c) Group 1.
d) Period 2.
User Jesse Bakker
by
8.1k points
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