Very Short Question and Answers - Atoms and Molecules

Canal rays are positively charged radiations discovered by E. Goldstein in 1886 that are produced in a gas discharge.

An atom with one electron and one proton will have no net charge because the positive charge of the proton balances the negative charge of the electron.

The basic structure of an atom consists of protons and electrons, with protons located in the nucleus and electrons orbiting around it.

The electron was discovered by J.J. Thomson in 1897.

The charge of an electron is negative, represented as -1.

The proton has a charge equal in magnitude but opposite in sign to that of the electron.

The mass of a proton is approximately 2000 times that of an electron.

The activities demonstrated that rubbing two objects together causes them to become electrically charged.

Protons are the positively charged particles in the nucleus of the atom and contribute to its mass and positive charge.

The mass of an electron is considered negligible compared to the mass of a proton.

The neutral charge in an atom signifies that the number of protons equals the number of electrons, resulting in a stable atom.

Electrons are responsible for chemical bonding and the reactivity of the element.

E. Goldstein contributed to the discovery of canal rays.

If an electron is removed from an atom, the atom becomes positively charged due to the excess of protons.

The discovery of sub-atomic particles like electrons and protons indicates that atoms are not indivisible as proposed by Dalton.

Protons cannot be easily removed from the atom because they are located in the nucleus and are bound tightly by the strong nuclear force.

The term 'electrically charged' refers to an imbalance of protons and electrons in an object, resulting in a positive or negative charge.

The findings about charged particles lead scientists to further study the structure and behavior of atoms and molecules.

Protons are found in the nucleus of the atom.

In static electricity, charged particles can attract or repel each other, leading to observable forces between charged objects.