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Question
Write the electronic configuration of the first two alkaline earth metals.
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Solution
Electronic configuration of the first two alkaline earth metals:
4Be: 1s22s2
12Mg: 1s22s22p63s2
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RELATED QUESTIONS
What are the following group known as?
Group 17
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.
Group whose elements have zero valencies.
Comment on the (i) reactivity (ii) colour (iii) physical state of group 17 elements.
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 –
alkaline earth metals
Write a short note on the following type of element –
noble gases
State the main helpful features of the long form of the periodic table.
State the following:
The group whose elements are unreactive or inert.
