'Electronic configuration' represents :

arrangement of protons

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arrangement of neutrons

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arrangement of electrons

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arrangement of electrons, protons and neutrons

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Solution

The correct option is B arrangement of electrons
The electronic configuration of an atom shows the number of electrons in each sublevel in each energy level of the ground-state atom. To determine the electronic configuration of a particular atom, start at the nucleus and add electrons one by one until the number of electrons equals the number of protons in the nucleus.

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Similar questions

Q. The given diagram shows the structure of atom with 10 protons and 10 neutrons. Electrons are in their respective shells and the electronic configuration is 2,8. Which element does the diagram represent?

Q. In Br how many protons and neutrons are present? write it's electronic configuration and valency

An element A atomic number 7 mass number 14

B electronic configuration 2, 8, 8

C electrons 13, neutrons 14

D Protons 18 neutrons 22

E electronic configuration 2, 8, 8, 1

State (i) valency of each element (ii) which one is a metal (iii) which is a non-metal (iv) which is an inert gas.

Q. A dipositive ion has an electronic arrangement

2, 8, 8

. Find out the number of electrons, protons, and neutrons in that element if its mass number is 40.

Lithium is a metal whose electronic configuration is 2 and 1 including 3 protons 3 electrons and 3 neutrons. So, if we remove 1 electron from lithium to make it stable. Then ,why would we call it lithium as it has 3 protons 3 electrons and 3 neutrons. But , after removal of 1 electron only 2 electrons are left. So, why would we call it lithium then.

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