1st Semester SS Final Exam 22 3rd

Front

What are metals?

Back

Metals are elements that are shiny, silvery solids and good conductors of heat and electricity.

Front

How many electrons does potassium (K) have?

Back

Potassium (K) contains 19 electrons.

Front

What are electrons?

Back

Electrons are subatomic particles with a negative charge.

Front

Where are valence electrons found?

Back

Valence electrons are found in the outermost energy levels of an atom.

Front

What are groups or families in the Periodic Table?

Back

Groups or families are the vertical (up and down) columns in the Periodic Table.

Front

What are neutrons?

Back

Neutrons are subatomic particles that have no charge and are found in the nucleus of an atom.

Front

What are protons?

Back

Protons are subatomic particles with a positive charge, located in the nucleus of an atom.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the significance of valence electrons?

Back

Valence electrons determine how an element reacts chemically and its bonding behavior.

Front

What are metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals.