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If calcium has atomic number 20 and mass number 40, the constituent of the atom is ...
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Chemistry Classroom
Post Utme
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If calcium has atomic number 20 and mass number 40, the constituent of the atom is ____________
SchoolNGR Classroom
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
A
20 protons, 10 neutrons and 10 electrons
B
20 protons, 20 neutrons and 20 electrons
C
20 protons, 20 neutrons and no electrons
D
10 protons, 10 neutrons and 20 electrons
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Correct Answer:
Option B
Explanation:
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