Atomic Structure

Who is the great indian sage in Vedic period? He discovered anu and paramanu

• Maharishi Kanad

• Maharishi Patanjali
• Maharishi Charaka
• Maharishi Panini

Which of these are important points of Dalton's atomic theory?

• Atoms of the same element can have different properties.
• Elements are made up of tiny particles called molecules.Chemical reactions involve the creation of new atoms.Atoms of the same element can have different properties.

• Elements are made up of tiny particles called atoms. Atoms of the same element are identical in size, mass, and other properties. Atoms of different elements can combine to form compounds. Chemical reactions involve the rearrangement of atoms. Atoms are indivisible and cannot be created or destroyed.
• Chemical reactions involve the creation of new atoms.

Who proposed the atomic model which is called Plum Pudding Model?

• J.J. Thomson
• Ernest Rutherford
• Albert Einstein
• Niels Bohr

What did Ernest Rutherford Discover?

• Quantum mechanics
• Electrons and electron cloud
• Atomic nucleus and planetary model of the atom
• Chemical bonding

What does Nucleons include?

• protons and electrons
• electrons and protons
• protons and neutrons
• neutrons and electrons

In 1932, ________ discovered Neutron.

• Albert Einstein
• James Chadwick
• Isaac Newton
• Marie Curie

What are bound electrons?

• Electrons that are not involved in chemical bonding
• Electrons that are located in the outermost energy level of an atom
• Electrons that are free to move within a material
• Electrons tightly held by the nucleus of an atom

The mass of an electron is 1/1837 times than the mass of one atom of ______.

(type all letters in small)