Which process is responsible for the formation of elements at the center of star?

• Nuclear fusion

• Supernova nucleosynthesis

• Big Bang Nucleosynthesis

• Stellar Nucleosynthesis

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

According to Bohr’s atomic theory/model, electrons are usually found in:

An isotope of an element has the same number of neutrons but different number of protons:

• TRUE

• FALSE

What is the full name of J.J. Thomson?

Which isotope of hydrogen consists of one proton and one neutron?

Tags

NGSS.HS-PS1-8

Solid Sphere Model was developed after J.J. Thomson discovered the electron in his Cathode Ray Tube experiment.

• TRUE

• FALSE

Ernest Rutherford discovered that atoms were mostly

• Negatively charged

• Positively charged

• Neutrally charged

• Empty space

Which element is the lightest and at the same time the most abundant in outer space?

• Oxygen

• Hydrogen

• Nitrogen

• Helium

How do heavier elements formed?

• Through nuclear fission

• Through nuclear fusion

• Through combustion

• Through nuclear synthesis

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

NGSS.HS-PS1-8

Which element will be formed when Carbon atom is combined with Hydrogen atom?

• Magnesium

• Oxygen

• Nitrogen

• Silicon

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5