Advertisements
Advertisements
Question
Write down the electronic configuration of the following
- 2713X,
- 3517Y.
Write down the number of electrons in X and neutrons in Y and the formula of the compound formed by X and Y.[XY3]
Advertisements
Solution
Electronic configuration of:
(1) 2713X number of electrons = 13
Distribution of elecrtrons in different ordits
13 = [2, 8, 3]
K L M
Number of neutrons in Y
= A − Z = 35 − 17 = 18
(2) 3517Y number of electrons = 17
Distribution of electrons in different orbits
17 = [2, 8, 7]
K L M
Formula of compound formed is

APPEARS IN
RELATED QUESTIONS
Fill in the blank of the following statement :
Cathode rays are a beam of fast moving _________.
What are inert elements?
Choose the correct answer from A, B, C and D:
When a metal atom becomes an ion:
Name or state the following:
Ion formed by the gain of an electron(s)
An element X has 2 electrons in its M shell, it forms a bond with an element Y which has 7 electrons in its third orbit.
- Write the formula of the compound formed.
- Which nearest inert gas electronic configuration will element X and Y acquire.
- Show by orbital diagram the formation of the compound between X and Y.
Cathode rays are made up of
_______ is a negatively charged particle.
The maximum number of electrons that can be present in the N shell is ______.
The relative charge of an electron is – 1.
Helium has two electrons in the outermost orbit and so it is chemically inert.
