Origin of Elements

Which among the choices pertains to the father of all elements?

• Hydrogen

• Helium

• Beryllium

• Lithium

This is the second phase of stellar evolution.

• Nebula

• Main Sequence Star

• Red Giant

• Supernova

A radioactive decay which releases energy but does not remove/emit any particles in the nucleus of an atom.

• Beta Decay

• Alpha Decay

• Positron Emission

• Gamma Decay

The Greek Philosopher who termed the tiny particles in a matter as "Elemento".

• Anaxagoras

• Democritus

• Empedocles

• Pythagoras

A famous Belgian Cosmologist who established the Big Bang Theory as an explanation to the origin of the universe.

• Edwin Hubble

• Georges Lemaitre

• John Dalton

• J.J Thomson

A radioactive decay which emits 2 protons and 2 neutrons to make a heavier element stable.

• Alpha Decay

• Beta Decay

• Electron Capture

• Positron Emission

A subatomic particle with a positive charge.

• Neutron

• Electron

• Proton

• Quark

Which among the statements is TRUE regarding the Big Bang Theory?

• The universe is an empty space with no energy and gravity present.

• The universe started as a singular entity, small, very dense, extremely hot, and expanded in an instant.

• The universe started as a hot region with full of energy and exploded as an empty space.

A chemist who suggested that an atom is a particle which has a positive nucleus and electrons are freely orbiting around the it.

• John Dalton

• J.J Thomson

• Ernest Rutherford

• Niels Bohr

This happens during a positron emission radioactive decay.

• A neutron from an isotope changes into a proton and an electron due to high number of the neutral particle.

• An isotope with too many protons in the nucleus undergoes B+ radioactive decay turning into a neutron and a positive electron.

• The electron in the innermost shell of an isotope is absorbed in the nucleus combining to a proton to form a neutron.

• The nucleus of an isotope does not change in terms of proton and neutron number rather releases energy in a form of gamma radiation.