answr
Join / Login

Atomic Number and Mass Number

Structure of Atom
Chemistry
Class 11

Overview

Quick summary with Stories

Revise with Concepts

Atomic Number and Mass Number-Advanced

ExampleDefinitionsFormulaes

Related questions

If number of electrons in an atom is and number of protons is also , then:
(i) What is the atomic number of an atom?
(ii) What is the charge on the atom?
(iii) Why does moon have very cold and very hot temperature even though it is present at the same distance from the sun as the earth is?

View solution

Boron has 2 stable isotopes, %) and (%) the atomic mass that should appear for boron in the periodic table is:

View solution

The mass of an element found in of each of four different compounds is , , and respectively . 

What is possible atomic weight of ?

View solution

The atomic number of an element is and mass number . Calculate the number of neutrons?

View solution

A trend common to both group and elements in the periodic table as atomic number increase is 

View solution

The chromium atom is represented as :

View solution

Give reason for the following:

The mass number of an atom is slightly less than the actual atomic mass.

View solution

Atomic number is ______________.

View solution

Magnesium hydroxide is the white milky substance in milk of magnesia. What mass of is formed when of is combined with ml of

View solution

For an element, and , What is the atomic number of the element?

View solution

View more