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प्रश्न
Write the electronic configuration of the first two alkaline earth metals.
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उत्तर
Electronic configuration of the first two alkaline earth metals:
4Be: 1s22s2
12Mg: 1s22s22p63s2
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संबंधित प्रश्न
What are the following group known as?
Group 18
What happens to the number of valence electrons in atoms of elements as we go down a group of the periodic table?
Name and state the following with reference to the elements of the first three periods of the periodic table.
Noble gas having electronic configuration: 2, 8, 8.
Take any one alkali metal and write its reaction with (i)oxygen (ii)water (iii)acid.
Write the reactions of the first three alkaline earth metals with dilute hydrochloric acid.
Give reason:
Alkali metals are kept in an inert solvent.
Write a short note on the following type of element –
halogens
Write a short note on the following type of element –
noble gases
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 which contains highly reactive electronegative non-metals including chlorine.
