Bohr Models (Flashcardizz)

Front

What are valence electrons?

Back

Valence electrons are the outermost electrons in an atom.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in an atom's nucleus.

Front

What does the period number indicate in the periodic table?

Back

The period number is equal to the number of energy levels in an atom.

Front

How do you identify an element based on its symbol?

Back

The element can be identified by its chemical symbol, such as Na for Sodium.

Front

What is the formula to calculate mass number?

Back

Mass number = Protons + Neutrons.

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What are protons?

Back

Protons are positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom.

Front

What are electrons?

Back

Electrons are negatively charged particles that orbit 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.