ELS 1

When helium atoms fuse, Helium will be converted to .

• Argon

• Carbon

• Chlorine

• Oxygen

________ will be formed when protostar attains its gravitational equilibrium.

• Main sequence star

• Red Giant

• Supernova

• White dwarf

Hydrogen and helium fuse at the of a main sequence star.

• Core

• Crust

• inner core

• mantle

_______ will be produced by oxygen fusion during red giant formation.

• helium

• hydrogen

• neon

• silicon

________ states that stars are formed when a dense region of molecular cloud collapse.

• Bigbang theory

• Evolution Theory

• Creation THeory

• Star Fomation Theory

Two protons and two neutrons will be emitted during ______ decay.

• Alpha

• Beta

• Gamma

• Fusion

_____ will happen to a star if its core can no longer produce the needed energy

• Protostar

• Red Giant

• Supernova

• White dwarf

During stage the outer covering of star will blow due to insufficient energy.

• Protostar

• Red Giant

• Supernova

• White dwarf

What is the lightest natural element?

• Helium

• Argon

• Hydrogen

• Uranium

Which of the following are nucleons?

• electrons and neutrons

• electrons and protons

• neutrons and nucleus

• neutrons and protons