Positive Ions (OCR GCSE Physics A, Combined (Gateway Science Suite)): Flashcards

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Positive Ions
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Charge of atoms with equal protons and electrons

Neutral

Charged particles formed when atoms lose/gain electrons

Ions

Charge when atom loses one or more electrons

Positive

Charge when atom gains one or more electrons

Negative

Number of electrons in neutral helium atom

Two

Number of protons in helium atom

Two

Why is a helium atom neutral?

Equal positive protons and negative electrons (2 each)

Helium ion type with 2 protons and 1 electron

Positive ion

Helium ion type with 2 protons and 3 electrons

Negative ion

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