Group 7 Chemical Properties Flashcards

1
Q

What do halogens tend to do to complete their outer shell?

A

Remove electrons from other elements.

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2
Q

What is oxidisation?

A

When an element loses an electron.

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3
Q

What do we call elements that remove an electron from another element?

A

Oxidising agents.

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4
Q

What elements in group 7 are the strongest oxidising agents?

A

The most reactive elements at the top of the group.

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5
Q

Why are elements at the top of group 7 the strongest oxidising agents?

A

They are smaller and have fewer shells, so the attraction between the nucleus and the electron that completes its outer shell is strong.

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6
Q

Why do the melting and boiling points increase down the group?

A

The intermolecular forces get stronger and require more energy to break.

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