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Question
Name and state the following with reference to the elements of the first three periods of the periodic table.
Group whose elements have zero valencies.
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Solution 1
Noble gases
Solution 2
Group is 18th or O group
RELATED QUESTIONS
What is meant in the periodic table by a group?
How do atomic structures (electron arrangements) change in a period with an increase in atomic numbers moving left to right?
Name the alkali metals, How many electron(s) they have in their outermost orbit.
Write the electronic configuration of the first two alkaline earth metals.
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.
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.
State the following:
The group from the groups 1 [IA], 2 [IIA], 16 [VIA] and 7 [VIIA] whose elements are most electronegative.
State the following:
The group whose elements are unreactive or inert.
