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Chapter 1

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What is the relative charge of a proton?

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Explanation

They are positively charged.

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What is the relative charge of an electron?

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Explanation

They are negatively charged.

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Which of these has a neutral charge?

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Neutrons are neutral

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If an atom loses one or more electrons, it becomes a...

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Explanation

When you lose negativity, you become more positive

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The total number of protons and neutrons in an atom is called its...

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The number of protons in the nucleus of an atom is called its...

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The atomic number is shown at the...

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Isotopes are atoms of an element with the normal number of ......... and have different numbers of .........

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What is the relative atomic mass of hydrogen?

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How many elements are in the periodic table?

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How are the elements arranged?

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Match the groups to their names -

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Group 7
Group 0
Group 1

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Noble gasses
Halogens
The alkali metals

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As you go down group seven, the elements get ....... reactive

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What does the group number represent?

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