Periodic Table

the positively charged subatomic particle contained in the nucleus of an atom

• proton

• neutron

• electron

• matter

a collection of atoms of one type that cannot be broken down into simpler substances by ordinary chemical or physical means

• element

• subatomic particle

• electron

• matter

a subatomic particle, contained in the nucleus of an atom, having the same mass as a proton but no electrical charge

• proton

• neutron

• electron

• matter

an arrangement of the elements according to their atomic numbers so that elements with similar properties are in the same column and properties repeat from row to row

• Periodic Table of Elements

• Atomic Theory

• Isotopes

• Subatomic Particles

a unique number for each element that equals the number of protons in an atom of that element

• element name

• element symbol

• atomic number

• atomic mass

the number of protons and neutrons in the nucleus of an atom is given by

• element name

• element symbol

• atomic number

• mass number

a grouping of elements based on similar properties, arranged by columns in the periodic table; also known as a group

• family

• period

• row

• isotope

a row on the Periodic Table of Elements

• family

• period

• row

• isotope

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the atomic number of Barium, Ba? (enlarge the periodic table)

• 20

• 38

• 56

• 88

Tags

NGSS.MS-PS1-1

How many protons and neutrons are present in a sodium atom, Na? (tap to enlarge the periodic table)

• 11 protons, 11 neutrons

• 11 protons, 12 neutrons

• 12 protons, 11 neutrons

• 12 protons, 12 neutrons