Group 0 & Group 1

Question 1

What are the vertical columns on the periodic table called?

Answer 1

The vertical columns on the periodic table are called groups.

Question 2

What are the horizontal rows called?

Answer 2

The horizontal rows on the periodic table are called periods.

Question 3

Why are elements placed in the same columns of the periodic table?

Answer 3

The periodic table is arranged so that elements in the same group have similar chemical and physical properties, and show trends in those properties. This is due to having the same number of outer shell electrons

Question 4

What is another name used ti describe Group 0 elements?

Answer 4

The Noble Gases

Question 5

Why are group 0 elements unreactive?

Answer 5

All the noble gases have a full outer shell of
electrons, so are stable.

Question 6

What is another name used ti describe Group 1 elements?

Answer 6

The Alkali Metals

Question 7

List some properties of Group 1 metals

Answer 7

• shiny
• low melting point
• soft
• easily cut
  conduct electricity
• malleable
• very reactive

Question 8

What would you observe when lithium reacts with water?

Answer 8

Bubbles fiercely and floats on the surface

Question 9

What is the Trent in reactivity as you go down group 1?

Can you explain the reason for this trend?

Answer 9

Reactivity increases as you go down group 1.

As we go down group1, the atoms get larger because an extra electron shell is added in each period.
The force of attraction between the positive nucleus and the negative outer electron decreases as they become further apart with more shielding.
Sodium is more reactive than lithium becau

Question 10

What is the product when group 1 metals (alkali metals ) react with water?

Answer 10

Alkali metals react with water to form a metal hydroxide and hydrogen gas

example:
lithium + water → lithium hydroxide + hydrogen

2Li (s) + 2H2O (l) → 2LiOH (aq) + H2 (g)

Question 11

Write the word equation for the reaction of lithium with water.

Answer 11

lithium + water → lithium hydroxide + hydrogen

Question 12

Write the word equation for the reaction of sodium with water.

Answer 12

sodium + water → sodium hydroxide + hydrogen

Question 13

Describe what you would observe when adding lithium to water.

Answer 13

Lithium metal fizzes across surface of water and floats. Bubbles are seen.

Question 14

Describe what you would observe when adding sodium to water.

Answer 14

Fizzes vigorously and moves quickly across surface of water

Question 15

Describe what you would observe when adding potassium to water.

Answer 15

Fizzes and burns with a lilac flame. Moves rapidly across surface of water

Question 16

How can we test the formation of hydrogen?

Answer 16

If you light a splint and place it in an area with hydrogen gas, it will make a squeaky pop sound.
If there is no hydrogen gas no sound will be made.

Question 17

Discuss the properties of the group 1 metals

Answer 17

 Low Density
 Float on water
 Very soft
 Very reactive
 Reactive with oxygen
 Burn vigorously
 Low boiling point
 Low melting point
 Reactive with water