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

Decreased attraction of electrons away from the nucleus

• attraction
• atomic radius
• electronegativity
• shielding effect

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

• nucleus
• electron shell
• proton
• electron

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

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The arrangement of electrons in the energy levels and orbitals within an atom

• electron configuration
• electron shells
• orbitals
• valence electron

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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

A chemical bond in which one atom gives up electrons (cation) to another atom that gains the electrons (anion); results from a difference in electronegativity greater than 1.7

• chemical bond
• hydrogen bond
• ionic bond
• bond

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

• electronegativity
• charge
• bonding ability
• electron configuration

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

• energy levels
• orbits
• shells
• electron area