Atoms and Elements: A Deep Dive into the Periodic Table

What is the smallest particle of matter that retains the properties of matter?

• Proton

• Atom

• Molecule

• Element

Which particle in an atom has no charge?

• Nucleus

• Electron

• Proton

• Neutron

What is a molecule?

• A particle with a positive charge

• A pure substance with only one type of atom

• Two or more atoms joined together

• A single atom

Tags

NGSS.MS-PS1-1

How many known elements are there?

• 109

• 120

• 118

• 114

What does the staircase line on the periodic table divide?

• Transition metals from alkali metals

• Noble gases from halogens

• Metals from nonmetals

• Groups from periods

Which group on the periodic table contains the noble gases?

• Group 18

• Group 2

• Group 1

• Group 17

What is the atomic number of lithium?

• 4

• 5

• 3

• 2

How many protons does a boron atom have?

• 5

• 11

• 3

• 7

How do you calculate the number of neutrons in an atom?

• Multiply the atomic number by the mass number

• Divide the mass number by the atomic number

• Subtract the atomic number from the mass number

• Add the atomic number and mass number

What are the rows on the periodic table called?

• Groups

• Sections

• Columns

• Periods