Atoms and Elements

How did Mendeleev arrange the elements?

• alphabetical 
• density
• melting point
• atomic mass

Tags

NGSS.HS-PS1-1

The horizontal row on the periodic table is called a

• group
• family
• period
• atomic number

Tags

NGSS.HS-PS1-1

Dimitri found that there was a pattern of properties that repeated every ____ elements.

• 2
• 4
• 5
• 7

Tags

NGSS.HS-PS1-1

A vertical column is called...

• group
• tower
• period
• crew

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is the most metallic element in period 3?

• Boron (B)
• Sodium (Na)
• Argon (Ar)
• Silicon (Si)

Which of these element is the least metallic?

• Potassium (K)
• Carbon (C)
• Sulfur (S)
• Neon (Ne)

The number at the bottom of each square on the periodic table is the ...

• atomic number
• atomic mass
• chemical symbol
• element name

Tags

NGSS.MS-PS1-1

What is the chemical symbol for Lithium?

• H
• He
• Li
• N

Tags

NGSS.HS-PS1-1

The months of the year are __________ because they repeat in the same order every 12 months.

• periodic
• group
• period
• halogens

How many elements follow the periodic law?

• 7
• 98
• 110
• All of them

Tags

NGSS.HS-PS1-1