Atomic Structure Quiz
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5 questions, one answer each
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1. Where in an atom are protons found?
- A. In shells around the nucleus
- B. In the nucleus
- C. Freely moving through the whole atom
- D. Outside the atom
2. What is the relative charge of an electron?
- A. +1
- B. 0
- C. −1
- D. +2
3. Two atoms of the same element have different numbers of neutrons. What are they called?
- A. Ions
- B. Isotopes
- C. Isomers
- D. Allotropes
4. An atom has atomic number 17 and mass number 35. How many neutrons does it have?
- A. 17
- B. 18
- C. 35
- D. 52
5. Copper exists as 69% copper-63 and 31% copper-65. What is its relative atomic mass to 1 decimal place?
- A. 63.0
- B. 63.6
- C. 64.0
- D. 65.0