Grade 10 Physical Sciences · Matter and Materials

Locate elements on the periodic table

Use an electron arrangement or atomic number to find an element's group and period on the periodic table (magnesium is in group 2, period 3).

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18) Periodic table gr 10Kevinmathscience

What Are Periods & Groups In The Periodic Table? | Properties of Matter | Chemistry | FuseSchoolFuseSchool - Global Education

Valence Electrons and the Periodic TableThe Organic Chemistry Tutor

Grade 10 The Periodic Table Chemistry Exam Questions Part 1Miss Martins Maths and Science

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Question 4.2 · November 2023 · Paper 2 · Provincial · 1 mark

Strontium is best known for the brilliant reds it produces from its salts in fireworks and flares.

Strontium is an element on the Periodic Table in period 5 group 2.
The four isotopes of strontium have isotopic mass numbers of

84

86

87

and

88

and relative abundance of

0, 56%

9, 86%

7%

and

82, 58%

respectively.

4.2 Write down the symbol of strontium.(1)

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