Atomic Structure, Elements, Periodic Table

Front

Subatomic particles that have a negative charge

Back

Electrons are subatomic particles with a negative charge.

Front

The atom that has an atomic mass of 12 has ____________ protons.

Back

An atom with an atomic mass of 12 has 6 protons.

Front

The atomic number identifies the number of __________.

Back

The atomic number identifies the number of protons in an atom.

Front

Which of the following elements is a metalloid? Sulfur, Silicon, Iron, Copper

Back

Silicon is a metalloid.

Front

The group number for groups 1-2 and 13-18 equals?

Back

The group number equals the number of valence electrons.

Front

What are protons?

Back

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

Front

What is the atomic mass?

Back

The atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What is a neutron?

Back

A neutron is a subatomic particle with no charge, found in the nucleus of an atom.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of elements organized by increasing atomic number and grouped by similar properties.

Front

What are valence electrons?

Back

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