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Test: Structure of an atom - Year 8 MCQ


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10 Questions MCQ Test Year 8 Chemistry (Cambridge) - Test: Structure of an atom

Test: Structure of an atom for Year 8 2024 is part of Year 8 Chemistry (Cambridge) preparation. The Test: Structure of an atom questions and answers have been prepared according to the Year 8 exam syllabus.The Test: Structure of an atom MCQs are made for Year 8 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Structure of an atom below.
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Test: Structure of an atom - Question 1

The smallest part of an element that retains the identity (and the chemical properties) of that element is ...

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The idea of atoms has been around for thousands of years but it was only during the last two hundred years that scientists have found evidence they exist. In 1981, a very powerful microscope was developed that can be used to 'see' actual atoms
Test: Structure of an atom - Question 2

Which elements are in SO2?

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If you did not know the answer, you could easily have looked up the chemical symbols to find out what elements they represent

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Test: Structure of an atom - Question 3

What is the correct symbol for Iron?

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A symbol MUST have ONE capital letter - no more, no less. That means the correct answer cannot be either options 2 or 3. Option 4 is tempting, but is the symbol for the metal iridium. But why use Fe for the symbol? The Latin word for iron is ferrum and quite a few symbols come from the Latin names for the elements. Iron is very common, so, if you didn't already know it, it should not be too long before you have to remember that Fe is the chemical symbol for iron
Test: Structure of an atom - Question 4

What is the correct formula for H-H?

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This is a simple representation of a molecule of the element hydrogen. You know that it is an element because there is only one type of atom in the formula

Test: Structure of an atom - Question 5

How many atoms of sulfur are there in CuSO4?

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There is no small number after the chemical symbol for sulfur therefore there is only one atom

Test: Structure of an atom - Question 6

Which elements are in CoCO3?

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Counting the capital letters in the formula immediately tells you that answers 2 and 3 must be incorrect (there are 3 capitals so there must be three elements). It is then simply a case of looking up the symbols on the periodic table or in a list of elements

Test: Structure of an atom - Question 7

Which subatomic particle is responsible for the positive charge of an atom's nucleus?

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Protons are positively charged particles found in the nucleus of an atom. They determine the atomic number of an element and contribute to its overall positive charge.

Test: Structure of an atom - Question 8

Which of the following particles has negligible mass and is located outside the nucleus of an atom?

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Electrons are negatively charged particles with negligible mass compared to protons and neutrons. They orbit around the nucleus in energy levels or shells.

Test: Structure of an atom - Question 9
Most of the elements in the periodic table are.....
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About three-quarters of all elements are metals
Test: Structure of an atom - Question 10

The atomic number of an element is determined by the number of:

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The atomic number of an element represents the number of protons found in the nucleus of its atoms. It determines the element's identity and its position in the periodic table.

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