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Question
The electronic configuration of an element T is 2, 8, 8, 1.
What is the group number of T?
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Solution
Group 1 since the valence electron is 1.
RELATED QUESTIONS
The position of three elements A, B and C in the Periodic Table are shown below –
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Group 16
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Group 17
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A
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B
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C
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(a) State whether A is a metal or non-metal.
(b) State whether C is more reactive or less reactive than A.
(c) Will C be larger or smaller in size than B?
(d) Which type of ion, cation or anion, will be formed by element A?
Fill in the following blank with suitable word:
Group 1 elements are called ...............
The atomic numbers of four elements P, Q, R and S are 6, 8, 14 and 16 respectively. Out of these, the element known as metalloid is:
(a) P
(b) Q
(c) R
(d) S
How would the tendency to gain electrons change on moving from left to right in a period of the periodic table?
How would the tendency to lose electrons change as we go from left to right across a period of the periodic table?
What is the usual number of valence electrons in the atoms of the last element in a period?
State how the valency of elements varies in a group of the periodic table?
Find the odd one out and give its explanation.
The scientist who propounded the modern periodic law is ______.
Group 16 elements are collectively called as ______.
