Atoms/Valence Electrons

Front

What is an atom?

Back

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

Tags

NGSS.MS-PS1-1

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.

Tags

NGSS.MS-PS1-1

Front

What are electrons?

Back

Electrons are negatively charged particles that orbit the nucleus of an atom.

Tags

NGSS.MS-PS2-3

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom, containing protons and neutrons.

Front

What are valence electrons?

Back

Valence electrons are the outermost electrons of an atom that are involved in chemical bonding.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

How many valence electrons does carbon have?

Back

Carbon has 4 valence electrons.

Front

How many valence electrons does phosphorus have?

Back

Phosphorus has 5 valence electrons.

Front

What is the maximum number of electrons in the first energy level?

Back

The maximum number of electrons that can occupy the first energy level is 2.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of elements organized by increasing atomic number.