Periodic Trends

A measure of the size of an atom, and is generally defined as the distance from the nucleus to the outermost electron orbit

• chemical reactivity

• atomic radius

• energy levels

• orbit

The core of an atom where most of the mass of an atom exists; contains protons and neutrons

• nucleus
• electron shell
• proton
• electron

Tags

NGSS.HS-PS1-8

The minimum energy required to remove an electron from the ground state of an atom

• electron configuration
• energy levels
• ionization energy
• ionic bond

A negatively charged subatomic particle that exists in various energy levels outside the nucleus of an atom

• neutron
• electron
• proton
• subatomic particle

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The chart scientists use to organize and classify all the known elements

• elements chart
• the chart
• Periodic Table of the Elements
• Period table

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The tendency of an atom to attract electrons and acquire a negative charge

• electronegativity
• charge
• bonding ability
• electron configuration

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The energies of electrons as they orbit the nucleus of an atom

• energy levels
• orbits
• shells
• electron area

Tags

NGSS.HS-PS1-1

Vertical columns of elements (families) on the periodic table with similar valence electron configurations and similar properties

• groups
• periods
• quadrants
• rows

Tags

NGSS.HS-PS1-1

An electron that resides in the outermost shell, or principal quantum level, of an atom

• periodic trend
• electron shell
• ionic radius
• valence electron

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which has the greater EN: 
Cl or Al?

• Cl
• Al

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2