Genernal Knowledge On Every Topic Flashcards

1
Q

What is name of the centre of the atom

A

The centre of an atom is a nueclus

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2
Q

Which particle has a positive charge

A

Proton

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3
Q

Which particle has the smallest mass

A

Electron

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4
Q

What the electronic structure of neon

A

2,8 (from the atomic number) ( their can only be 8 electrons in an atoms outer shell)

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5
Q

To find a percentage

A

Divided the smaller number by the lager number then times it by 100

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6
Q

What type of electromagnetic radiation is emitted by turned on neon sign

A

Visible light

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7
Q

What are two health risks to UV radiation

A

Sun burn (skin burnt) and long exposure to UV can cause skin cancer

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8
Q

What is the plum pudding model made up of

A

A positively charged dough with negativity charged electrons within the dough

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9
Q

What is a nuclear model made up of

A

A centre nucleus with orbiting electrons around it

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10
Q

Why is the total positive charge in every atom in an element always the same

A

As each atom in the element has the same number of protons which have a positive charge

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