Activate 2 C2.1 Review - Periodic Table

Question 1

When non-metals are dissolved in water they form...

Accepted Answer

Acidic solutions (red in indicator)

Question 2

Helium is used in balloons because..

Accepted Answer

It is less dense than air, It is unreactive/inert and non-flammable

Question 3

Which of these metal facts is false?

Accepted Answer

Metals typically have low densities

Question 4

Mendeleev left gaps in the Periodic Table because...

Accepted Answer

He predicted that there were unknown elements, Some elements didn't fit the reactivity pattern, It gave groups of elements with similar chemical properties

Question 5

Group 1 metals are different from other metals because...

Accepted Answer

They react violently with water, They are easily cut with a scalpel

Question 6

Metals are found...

Accepted Answer

on the right of the Periodic Table

Question 7

Group 0/8 elements - which statement is false?

Accepted Answer

Group 0/8 elements decrease in boiling point down the group

Question 8

As you go down Group 1...

Accepted Answer

The elements are more reactive, The elements have lower melting points

Question 9

Group 1 metals react with water and form..

Accepted Answer

Alkaline solutions

Question 10

Which of the following describes a physical property?

Accepted Answer

How substances can be measured, How substances appear

Question 11

Periods in the Periodic Table:

Accepted Answer

Go from metal → non-metal, Show trends in physical state

Question 12

Sodium fluoride + bromine → ?

Accepted Answer

sodium fluoride + bromine, no reaction

Question 13

Non-metals normally snap easily. This makes them...

Accepted Answer

Brittle

Question 14

As you go down Group 7...

Accepted Answer

The elements have higher melting points, The elements become less reactive

Question 15

Displacement happens when...

Accepted Answer

A more reactive element replaces a less reactive element

Question 16

potassium + water →

Accepted Answer

potassium hydroxide + hydrogen

Question 17

Groups in the Periodic Table:

Accepted Answer

Have similar chemical properties

Question 18

boron iodide + chlorine → ?

Accepted Answer

boron chloride + iodine

Question 19

Groups in the Periodic Table:

Accepted Answer

Appear in columns, Are placed vertically

Question 20

Which of the following is not a property of a metal?

Accepted Answer

brittle

Activate 2 C2.1 Review - Periodic Table

Questions 20

Activate 2 C2.1 Review - Periodic Table

Questions 20