Periodic Table

how many elements are there on the periodic table

The table below shows the characteristics of the element Sulfur (S)

Sulfur (S) is most likely —

• An alloy

• a metalloid

• a non-metal

• a metal

Which properties best describe metals?

Select TWO correct answers.

• Semiconductor

• Malleable

• Brittle

• Shiny

• Dull

Metalloids tend to be -

• good conductors only when they are mixed with nonmetals.

• Good Semi-conductors

• poor semiconductors only when they are mixed with metals.

• poor semiconductors.

Label the element with the correct terms

a

b

c

d

Atomic Mass

Atomic number

Element Symbol

Element Name

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NGSS.MS-PS1-1

How would you use a periodic table to find elements with similar chemical properties?

• Look for elements in the same row.

• Look for elements in the same column.

• Choose elements randomly.

• Look for the heaviest elements.

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DOK Level 3: Strategic Thinking

A horizontal row on the periodic table is called a:

• group

• family

• column

• period

Which of the following is a characteristic of metals?

• Poor conductor of heat and electricity

• High reactivity with water

• Shiny appearance and malleable

• Gaseous at room temperature

What is the atomic number of an element?

• The number of protons in the nucleus

• The total number of protons and neutrons in the nucleus

• The number of electrons surrounding the nucleus

• The total mass of the element

Aluminum is in GroUP ​ (a)   and Period ​​ (b)  

• 13

• 3

• 1

• 14

• 2

• 18

Tags

NGSS.MS-PS1-1