PT/Electrons/Ions

Which particles are found in the nucleus? Circle all correct answers.

• Protons

• Neutrons

• Electrons

The elements on the periodic table are arranged in order of increasing

• Neutron number

• Atomic mass

• Atomic number

• Properties

Atoms of metallic elements tend to

• gain electrons and form negative ions

• gain electrons and form positive ions

• lose electrons and form negative ions

• lose electrons and form positive ions

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

On the periodic table, elements in each column have similar

• atomic masses

• atomic numbers

• properties

• Symbols

As you move from left to right across the periodic table, elements

• become less metallic

• have a lower atomic weight

• have a lower atomic number

• become more metallic

Each column of the periodic table is

• an element

• an isotope

• a group

• a period

Elements that belong to the same group have the same number of

• valence electrons

• inner electrons

• neutral electrons

• total electrons

Atoms that gain or lose electrons are called

• Metals

• Ions

• Nonmetals

• Isotopes

The three main groups of elements are metals, nonmetals, and

• inert gasses.

• radioactive isotopes

• alkali metals

• Metalloids

Ionization refers to the process of

• changing from one period to another.

• turning lithium into fluorine.

• losing or gaining protons.

• losing or gaining electrons.