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प्रश्न
Name the first three alkaline earth metals.
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उत्तर
The first three alkaline earth metals are Beryllium, Magnesium, and Calcium.
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संबंधित प्रश्न
What is meant in the periodic table by a group?
What happens to the number of valence electrons in atoms of elements as we go down a group of the periodic table?
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.
Comment on the (i) reactivity (ii) colour (iii) physical state of group 17 elements.
Write a short note on the following type of element –
alkaline earth metals
Write a short note on the following type of element –
halogens
‘The periodic table contains elements methodically grouped together’.
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 whose elements are unreactive or inert.
