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The diagram shows the structure of an atom - Edexcel - GCSE Physics - Question 1 - 2013 - Paper 1
Question 1
The diagram shows the structure of an atom. (a) (i) Complete the sentence by putting a cross (✗) in the box next to your answer. The size of the charge on each ele... show full transcript
Worked Solution & Example Answer:The diagram shows the structure of an atom - Edexcel - GCSE Physics - Question 1 - 2013 - Paper 1
Step 1
Complete the sentence by putting a cross (✗) in the box next to your answer.
Answer
The size of the charge on each electron is B half the charge on the proton. This is because electrons carry a negative charge, which is equal in magnitude but opposite in sign to the positive charge of protons.
Step 2
Complete the sentence by putting a cross (✗) in the box next to your answer.
Answer
The atomic number of a neutral atom is always the same as the number of C protons and neutrons. The atomic number represents the number of protons, and in a neutral atom, it must equal the number of electrons.