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प्रश्न
The electronic configuration of an element T is 2, 8, 8, 1.
How many valence electrons are there in an atom of T?
उत्तर
It has one electron in the outermost orbit. So there is only one valence electron.
संबंधित प्रश्न
Name the element which has a total of three shells with five electrons in its valence shell?
Name the element which has a total of four shells with two electrons in its valence shell?
The metals of Group 2 from top to bottom are Be, Mg, Ca, Sr and Ba. State the common feature in the electronic configuration.
On moving down a group, the number of valence electrons ______.
How does number of valence electrons vary on moving from left to right in the third period of a periodic table?
Arrange the following as per the instruction given in the bracket:
P, Si, F, Be (decreasing order of valence electrons)
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?
Answer the following in respect of element \[\ce{_16^32S}\].
What is its valency?
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?
