Igcse Model Questions Vol1 2018 Chemistry Question 1

Practice practical question 1 from the 2018 Igcse Model Questions Vol1 Chemistry examination. This question covers Atomic structure .

Igcse Model Questions Vol1 2018 Chemistry Practical

Topic: Atomic structure

Question 1 IGCSE_MODEL_QUESTIONS_VOL1 • 2018 • CHEMISTRY • practical

A mass‑spectrometer was used to analyse a sample of an unknown element. The instrument gave the following data for the isotopes present:

Question Parts

( a )

Calculate the average atomic mass of the unknown element using the data in the table.

( b )

Using the periodic table, identify the element whose standard atomic mass is closest to your calculated value. State its chemical symbol and the group number of the element.

( c )

List two possible sources of error that could affect the accuracy of the mass‑spectrometer data.

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About This Question

This is Igcse Model Questions Vol1 2018 Chemistry Question 1. It is one of the practical questions from the 2018 Igcse Model Questions Vol1 Chemistry examination.

The question covers Atomic structure .

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