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प्रश्न
What are the following group known as?
Group 1
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उत्तर
Group 1 is known as the alkali metals.
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संबंधित प्रश्न
What is meant in the periodic table by a group?
Name and state the following with reference to the elements of the first three periods of the periodic table.
Noble gas with duplet arrangement of electrons.
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.
Name the alkali metals, How many electron(s) they have in their outermost orbit.
Comment on the (i) reactivity (ii) colour (iii) physical state of group 17 elements.
Name the gas used in:
Bright colour advertising light works
State the characteristics which remain similar in moving down in a group of the periodic table.
Write a short note on the following type of element –
halogens
‘The periodic table contains elements methodically grouped together’.
Give a reason for the following:
Group 1 [I – A] elements are called alkali metals.
