What is Group 1 of the Periodic Table called?

Group 1 is called the alkali metals .

Give two properties of Group 1 metals.

Properties of Group 1 metals: Are soft Have relatively low densities Have relatively low melting points Are very reactive

Describe the trend in reactivity going down Group 1.

Going down Group 1, reactivity increases .

Define alkali metals .

The alkali metals are the elements in Group 1 of the periodic table. They are soft metals with low densities and low melting points that react vigorously with water to form an alkaline hydroxide solution and hydrogen gas.

Explain why the alkali metals share similar chemical properties.

The alkali metals share similar chemical properties because they all have one electron in their outer shell .

Going down Group 1, the reactivity of the alkali metals .......... because the outer electron is held less strongly by the nucleus as the number of .......... increases.

Going down Group 1, the reactivity of the alkali metals increases because the outer electron is held less strongly by the nucleus as the number of shells increases.

Give the electronic configuration of a lithium atom.

Floating Moving Melting / turning into a ball / sphere Getting smaller / disappearing / dissolving Leaving a white trail

Lithium is added to water. What colour will universal indicator go if it is added to the solution?

If universal indicator is added to the solution it will go purple / blue .

True or False? The alkali metals all have two electrons in their outer shell.

False. The alkali metals all have one electron in their outer shell, which is why they share similar chemical properties and are all highly reactive.

Name the two products formed when sodium reacts with water.

The two products formed when sodium reacts with water are sodium hydroxide and hydrogen .

Give the electronic configuration of a potassium atom.

The electronic configuration of potassium is 2.8.8.1 .

Write the balanced symbol equation for the reaction between potassium and water.

The balanced symbol equation for the reaction between potassium and water is: 2K (s) + 2H 2 O (l) ⟶ 2KOH (aq) + H 2 (g)

Define the term ion .

An ion is an atom or molecule with a positive or negative charge due to the gain or loss of electrons .

True or False? The reactions of the alkali metals with water get more vigorous as you descend the group.

True. The reactions of the alkali metals with water get more vigorous as you descend the group.

Explain why reactivity increases going down Group 1.

Reactivity increases going down Group 1 because going down Group 1, the number of shells increases . There is less attraction between the outer electron and the nucleus so the outer electron is more easily lost .

True or False? The energy required to remove the outermost electron increases as you descend the Group 1 metals.

False. Less energy is required to overcome the force of attraction as it gets weaker, so the outer electron is lost more easily as you descend the Group 1 metals.

Give the charge of the ions formed when a Group 1 metal loses an electron.

The charge of the ions formed when a Group 1 metal loses an electron is 1+ .

Reactivity increases going down Group 1 because each successive element has more .......... , increasing the distance between the nucleus and the outer electron so the electron is .......... easily lost.

Reactivity increases going down Group 1 because each successive element has more electron shells , increasing the distance between the nucleus and the outer electron so the electron is more easily lost.

GCSEScienceEdexcelCombined ScienceChemistryFlashcardsGroups in the Periodic TableGroup 1

Group 1 (Edexcel GCSE Combined Science: Chemistry): Flashcards

Exam code: 1SC0

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FrontGroup 1 (Alkali Metals)
What is Group 1 of the Periodic Table called?
FrontGroup 1 (Alkali Metals)
Give two properties of Group 1 metals.
BackGroup 1 (Alkali Metals)
Properties of Group 1 metals:
Are soft
Have relatively low densities
Have relatively low melting points
Are very reactive

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Cards in this collection (19)

What is Group 1 of the Periodic Table called?
Group 1 is called the alkali metals.
Give two properties of Group 1 metals.
Properties of Group 1 metals:
- Are soft
- Have relatively low densities
- Have relatively low melting points
- Are very reactive
Describe the trend in reactivity going down Group 1.
Going down Group 1, reactivity increases.
Define alkali metals.
The alkali metals are the elements in Group 1 of the periodic table. They are soft metals with low densities and low melting points that react vigorously with water to form an alkaline hydroxide solution and hydrogen gas.
Explain why the alkali metals share similar chemical properties.
The alkali metals share similar chemical properties because they all have one electron in their outer shell.
Going down Group 1, the reactivity of the alkali metals .......... because the outer electron is held less strongly by the nucleus as the number of .......... increases.
Going down Group 1, the reactivity of the alkali metals increases because the outer electron is held less strongly by the nucleus as the number of shells increases.
Give the electronic configuration of a lithium atom.
- Floating
- Moving
- Melting / turning into a ball / sphere
- Getting smaller / disappearing / dissolving
- Leaving a white trail
Lithium is added to water. What colour will universal indicator go if it is added to the solution?
If universal indicator is added to the solution it will go purple / blue.
Write the word equation for the reaction between lithium and water.
The word equation for the reaction between lithium and water is:
lithium + water $\to$ lithium hydroxide + hydrogen
True or False?
The alkali metals all have two electrons in their outer shell.
False.
The alkali metals all have one electron in their outer shell, which is why they share similar chemical properties and are all highly reactive.
Name the two products formed when sodium reacts with water.
The two products formed when sodium reacts with water are sodium hydroxide and hydrogen.
Give the electronic configuration of a potassium atom.
The electronic configuration of potassium is 2.8.8.1.
Write the balanced symbol equation for the reaction between potassium and water.
The balanced symbol equation for the reaction between potassium and water is:
2K (s) + 2H₂O (l) ⟶ 2KOH (aq) + H₂ (g)
Define the term ion.
An ion is an atom or molecule with a positive or negative charge due to the gain or loss of electrons.
True or False?
The reactions of the alkali metals with water get more vigorous as you descend the group.
True.
The reactions of the alkali metals with water get more vigorous as you descend the group.
Explain why reactivity increases going down Group 1.
Reactivity increases going down Group 1 because going down Group 1, the number of shells increases. There is less attraction between the outer electron and the nucleus so the outer electron is more easily lost.
True or False?
The energy required to remove the outermost electron increases as you descend the Group 1 metals.
False.
Less energy is required to overcome the force of attraction as it gets weaker, so the outer electron is lost more easily as you descend the Group 1 metals.
Give the charge of the ions formed when a Group 1 metal loses an electron.
The charge of the ions formed when a Group 1 metal loses an electron is 1+.
Reactivity increases going down Group 1 because each successive element has more .........., increasing the distance between the nucleus and the outer electron so the electron is .......... easily lost.
Reactivity increases going down Group 1 because each successive element has more electron shells, increasing the distance between the nucleus and the outer electron so the electron is more easily lost.

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