Examine the false statement.

Chemistry

2 answers:

Andrei [34K]4 years ago

8 0

Answer:

The alkali earth metals have one valence electron.

Explanation:

Alkali earth metals are elements that constitute Group I in the periodic table. These include: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs) and francium (Fr).

The alkali earth metals are characterised by a outer or valence electron configuration of ns¹.

Li = 2s¹, Na = 3s¹, K = 4s¹, Rb = 5s¹, Cs = 6s¹

Therefore, in their outermost or valence shell these elements have only one electron.

Hence the given statement: that the alkali earth metals have 5 valence electrons is false. Instead it should be reworded as:

The alkali earth metals have one valence electron.

Fynjy0 [20]4 years ago

5 0

The alkali earth metals have two valence electrons.
Hope this helps! :)

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Note: Refer the attached image for the structure of methylcyclohexane

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