1st Semester SS Final Exam 22 3rd

Front

The vertical (up and down) columns in the Periodic Table are called

Back

groups or families

Front

How many neutrons does an Oxygen atom have?

Back

8

Front

The splitting of a nucleus into smaller nuclei is called

Back

fission

Front

Which letter represents particles in solid form?

Back

A

Front

Subatomic particles with a positive charge are called

Back

protons

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the difference between fusion and fission?

Back

Fusion is the combining of nuclei, while fission is the splitting of a nucleus.

Front

What are neutrons?

Back

Subatomic particles with no charge found in the nucleus of an atom.

Front

What is the role of electrons in an atom?

Back

Electrons are negatively charged particles that orbit the nucleus and are involved in chemical bonding.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.