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Question
An element has 2 electrons in its N shell.
State the name assigned to this group.
Solution 1
The name assigned to this group is IIB
Solution 2
Alkaline earth metals.
RELATED QUESTIONS
Classify the following elements into metals, non-metals and metalliods
As, C, Hg, Mg, S, Si
How does the valency of elements change of moving from left to right in the third period of the periodic table?
In each of the following pair, choose the atom having the bigger size:
(a) Mg (At. No.12) or Cl (At. No.17)
In each of the following pair, choose the atom having the bigger size:
Na (At. No. 11) or K (At. No. 19)
Complete the following sentences
The similarities in the properties of a group of elements are because they have the same …………………
On the basis of electronic configuration, how will you identify the first and the last element of a period?
Based on the group valency of element write the molecular formula of the following compound giving justification:
Halide of the elements of group thirteen
Select the correct answer from the options given below.
Is the group number of the element whose atomic number is 4.
Give a reason for the following:
A transition from metallic to non-metallic elements is seen on moving from left to right in a period of the periodic table.
Complete the table pertaining to the following elements given in Column I.
| Column I Elements | Atomic Number | Electronic Configuration | Underline the element present in that group |
| 1. Hydrogen | 1 | ______ | Be/Na/Ca |
| 2. Carbon | 6 | ______, ______ | N/P/Si |
| 3. Nitrogen | 7 | _______, ______ | C/P/S |
| 4. Oxygen | 8 | _______, ______ | N/S/Cl |
| 5. Sulphur | 16 | _____, ______, _______ | O/N/F |
| 6. Chlorine | 17 | _____, ______, ______ | I/O/S |
