______ is the smallest particle of an element.

रिक्त स्थान भरें

Atom is the smallest particle of an element.

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अध्याय 12: Atomic Structure - Exercises [पृष्ठ १३६]

अध्याय 12 Atomic Structure
Exercises | Q II. 1. | पृष्ठ १३६

Write the names of the elements present in the:-

Ammonia

Fill in the blank

An ion with positive charge is called ______

Define: Chemical bond

A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.

What is the atomic numebr of X ?

Fill in the following blanks with suitable words :

In water, the proportion of oxygen and hydrogen is .............. by mass.

Draw the electron dot structure of this compound.

Select the correct answer to the statement given below:

The smallest particle of a substance – capable of independent existence and which retains the characteristics of the substance.

The electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of phosphorus

Define – Atom.

Atoms of one element can be transmuted into atoms of other elements by ______