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प्रश्न
This question refers to the elements of the Periodic Table with atomic numbers from 3 to 18. Some of the elements are shown by letters, but the letters are not the usual symbols of the elements.
| 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| A | B | C | D | E | F | G | H |
| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| I | J | K | L | M | N | O | P |
Which of these is an element with valency 4?
उत्तर
D (6) and L (14)
संबंधित प्रश्न
Correct the statement.
Valency depends upon the number of shells in an atom.
According to atomic structure, what determines which element will be the first and which will be the last in a period?
An element barium has atomic number 56. Look up its position in the periodic table and answer the following question.
What is its valency?
Name the element which has a total of four shells with two electrons in its valence shell?
Explain why the following statement is not correct:
Atoms of elements in the same group have the same number of electron(s).
The metals of Group 2 from top to bottom are Be, Mg, Ca, Sr and Ba. State the common feature in the electronic configuration.
An element ‘A’ belongs to the third period and group 16 of the Periodic Table. Find out the valency of A.
Elements of group 1 and elements of group 17 both have valency 1. Explain.
An element has 2 electrons in its N shell.
What is the valency of this element?
Match the atomic number with the following:
A gaseous element with valency 2.
