In which group is magnesium found?

Important Questions on The Periodic Table

EASY

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 5 - The Periodic Table>Exercise 6>Q 3

In which period argon is found?

EASY

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 5 - The Periodic Table>Exercise 6>Q 3

In which period calcium is found?

EASY

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 5 - The Periodic Table>Exercise 6>Q 3

In which period carbon is found?

MEDIUM

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 5 - The Periodic Table>Exercise 6>Q 4

Draw a diagram to show the electron shells in a silicon atom. Explain how the structure relates to silicon's position in the periodic table.

MEDIUM

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 5 - The Periodic Table>Exercise 7>Q 5

Give the name and symbol of an element that is a soft metal and reacts with water to make an alkaline solution.

MEDIUM

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 5 - The Periodic Table>Exercise 7>Q 5

Give the name and symbol of an element that is an unreactive gas that glows when electricity is passed through it.

EASY

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 5 - The Periodic Table>Exercise 7>Q 6

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

MEDIUM

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 5 - The Periodic Table>Exercise 8>Q 7

When elements react with other elements their atoms form a full outer shell of electrons. Use this information to suggest why the noble gases are unreactive.