Atoms Test - 3...

Canal ray experiment lead to the discovery of

Who discovered neutrons?

Which of the following options is the largest particle?

Mass of a neutron is

Which of the following options is not a part of atomic nucleus?

Which among the following options represents isobars?

How many electrons are there in the valence shell of an element having atomic number 8?

Which of the following options is the atomic number of phosphorus?

What is the valency of an element having atomic number 10?

If the number of electrons, protons and neutrons of an atom is 8, 8 and, 9, respectively, what will be the mass number of that element?

If atomic number of an element is 20, then how many electrons are present in that element?

If atomic number and mass number of an element are 11 and 23, respectively, what would be the number of neutrons present in it?

What is the maximum number of electrons present in N - shell?

How many valence electrons are present in silicon?

What is the atomic number of an element that possesses 20 electrons?

Which of the following statements contradicts Dalton`s atomic theory?

Who proposed nuclear model of atoms?

Which of the following statements is not true with regard to matter?

Atomic number of an element is 11 and mass number of that element is 23. How many protons are present in the atom?

Which of the following elements has the maximum atomicity?