Periodic Table

What are the vertical columns on the periodic table called?

• groups

• periods

• protons

• valence electrons

Which element is in period 5?

• Vanadium

• Rubidium

• Tungsten

• Lithium

the basic structural unit of matter

• atom

• matter

• element

• nucleus

Tags

NGSS.MS-PS1-1

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

one or two letters that represent the name of an element

• element name

• element symbol

• atomic number

• atomic mass

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 mass of an atom, calculated by adding the number of protons and neutrons in the nucleus of the atom

• element name

• element symbol

• atomic number

• atomic mass

a row on the Periodic Table of Elements

• family

• period

• row

• isotope

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

who discovered the first scientific and systematic periodic table

• Henry Mosley

• Dmitri Mendeleev

• John Dalton

• sir Isaac Newton

Which one is correct about mendeleev's periodic law

• Properties of elements are periodic function of their atomic mass

• the physical and chemical properties of elements are periodic function of their atomic number.

• physical properties of elements are periodic function of their atomic weight.

• chemical properties of elements are periodic function of their atomic number.