Periodic table

Why was Mendeleev's students struggling in his Science Class?

• It was boring

• It was too much info

• There's no fun activities

• There's no system to organize elements

Which pair of elements has the most similar properties?

• Be and B

• O and S

• H and Hg

• Na and F

Tags

NGSS.HS-PS1-1

When elements fall under the same column, this means they belong to the same ______.

• family or group

• period

Name group 1A on the periodic table.

• alkali metals

• alkaline earth metals

• noble gases
  noble gases

• halogens

Tags

NGSS.HS-PS1-1

Who is the scientist who organized the periodic chart by ATOMIC NUMBER?

• Moseley

• Mendeleev

• Einstein

• Miller

A rule that states that repeating chemical and physical properties of elements change periodically with the atomic number of the elements is the _________.

• periodic law

• alkaline-earth metals

• actinide

• group rule

Tags

NGSS.HS-PS1-1

Which of the following is a property of a non-metal?

• Conducts electricity and heats well

• Can be hammered into thin sheets

• Is brittle and breaks easily

• Has a shiny, metallic luster

Which element is a metalloid?

• Titanium

• Selenium

• Potassium

• Polonium

Tags

NGSS.HS-PS1-1

Groups on the periodic table are __________.

• Horizontal Rows

• Vertical Columns

How many periods are on the periodic table?

• 5

• 6

• 7

• 8