Question 1

In the periodic table, how are the elements arranged?

Accepted Answer

Increasing atomic (proton) number

Answer

Decreasing mass number.

Answer

Increasing mass number.

Answer

Decreasing atomic (proton) number.

Question 2

Which of these is a property of non-metals?

Accepted Answer

They are brittle.

Answer

They are found on the left of the periodic table.

Answer

They can be hammered into shape.

Answer

They conduct electricity.

Question 3

An element has an electron arrangement of 2,8,1. Which group does it belong to?

Accepted Answer

Group 1

Answer

Group 11

Answer

Group 2

Answer

Group 8

Question 4

Which sentence about Group 1 metals is correct?

Accepted Answer

Group 1 metals react with water to produce alkaline solutions.

Answer

Sodium reacts with water to give a solution of sodium hydroxide and the gas oxygen.

Answer

They are found on the far right of the periodic table.

Answer

Group 1 metals are known as the acidic metals.

Question 5

Potassium reacts with water and a gas is given off. Which is the correct positive test for this gas?

Accepted Answer

It gives a squeaky pop with a lit splint.

Answer

It relights a glowing splint.

Answer

It turns limewater cloudy.

Answer

It extinguishes a flame.

Question 6

Which statement is true about the elements in Group 7?

Accepted Answer

When they react they gain an electron.

Answer

The larger the atom, the more reactive it is.

Answer

They get more reactive down the group.

Answer

They form 1 ions.

Question 7

A more reactive halogen will displace a less reactive halogen from a solution of its salt. Which equation is correct?

Accepted Answer

bromine + potassium iodide → potassium bromide + iodine

Answer

chlorine + potassium iodide → potassium iodine + chlorine

Answer

chlorine + potassium bromide → Bromine chloride + potassium

Answer

bromine + potassium chloride → potassium bromide + chlorine

Question 8

Which of these sentences about how Mendeleev constructed the periodic table is true?

Accepted Answer

He put the elements in a table based on atomic weight and patterns in their properties.

Answer

He left no gaps between the elements.

Answer

He could not make predictions about properties.

Answer

He kept the elements in the same order.

Question 9

Which statement about Group 1 metals is true?

Accepted Answer

When Group 1 metal atoms react, they lose an electron to form an ion with a 1+ charge.

Answer

The reactivity of Group 1 metals decreases down the group.

Answer

The outer electron is closer to the nucleus as you go down the group.

Answer

There is less shielding as you go down the group.

Question 10

Which sentence explains why Group 7 elements get less reactive as you go down the group?

Accepted Answer

Shielding increases as you go down the group.

Answer

Electrostatic attraction increases going down the group.

Answer

The larger the atom, the easier it is for the atom to gain electrons.

Answer

The distance between the outermost electron and the nucleus decreases.

Question 11

The table shows ions with their electronic structure and group.  Which row is correct?

Accepted Answer

B

Answer

A

Answer

D

Answer

C

Question 12

Group 1 elements are very reactive. Which is a correctly balanced equation for a reaction of a Group 1 element?

Accepted Answer

2Na + 2H$_2$O → 2NaOH + H$_2$

Answer

Cs + 2H$_2$O → CsOH + H$_2$

Answer

2K + 2I$_2$ → 2KI

Answer

Na + Cl$_2$ → 2NaCl

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