Advertisements
Advertisements
प्रश्न
The ion of an element has 3 positive charges. The mass number of atom of this element is 27 and the number of neutrons is 14. What is the number of electrons in the ion?
विकल्प
13
10
14
16
Advertisements
उत्तर
10
Explanation -
Mass number of the element = 27
Number of neutrons = 14
Number of protons = mass number – number of neutrons
= 27 – 14 = 13
As the ion of this element has 3 positive charges, it means that it has lost 3 electrons. Therefore, there are now 10 electrons in the ion.
संबंधित प्रश्न
How does an electron differ from a neutron?
If an atom contains one electron and one proton, will it carry as a whole is neutral
Give the symbol and charge of each particle.
An element A has 1 electron in its first shell. It combines with element B having 7 electrons in its third shell. What type of bond is formed?
If electrons are getting added to en element Y; then
What charge will Y migrate to during the process of electrolysis?
Name or state the following:
Ion formed by the gain of an electron(s)
Cathode rays are made up of
On the basis of Thomson’s model of an atom, explain how the atom is neutral as a whole.
Which of the following statement is always correct?
All non–metals will have ______ electrons in the outermost orbit of their atoms.
