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Question
Name or state following with reference to the element of the first three periods of the periodic table.
An alkaline earth metal in period 3.
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Solution
An alkaline earth metal in period 3 is Mg [Magnesium]
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RELATED QUESTIONS
What are the following group known as?
Group 17
What are the following group known as?
Group 18
How do atomic structures (electron arrangements) change in a period with an increase in atomic numbers moving left to right?
Comment on the (i) reactivity (ii) colour (iii) physical state of group 17 elements.
Give reason:
Alkali metals are kept in an inert solvent.
Give reason:
Alkali metals and halogens do not occur free in nature.
Give reason:
Alkali and alkaline earth metal compounds usually form electrovalent compounds.
Give reason:
Inert gases do not form compounds.
Write a short note on the following type of element –
halogens
Give a reason for the following:
Group 1 [I – A] elements are called alkali metals.
