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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.
Electrons carry a negative charge that is equal in magnitude to the positive charge of protons, making it half the absolute value of the proton's charge.
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.
In a neutral atom, the number of electrons equals the number of protons, affirming that the atomic number, defined as the number of protons, is equal to the number of electrons.