Hamad Chemistry Basic Concept 21/01/2021 A. lighter B. intermediate C. heavier D. are collected at same time Related Mcqs: How many isotopes have odd atomic number ?A. 154 B. 280 C. 86 D. 300... Percentage of calcium in calcium carbonate is___________________?A. 80% B. 30% C. 40% D. 20%... Which one of the following is not the mono isotopic element ?A. arsenic B. uranium C. iodine D. nickel... Which of the solid does not contain covalent bond__________________?A. copper B. ice C. diamond D. graphite... What is maximum number of electrons in an orbital with m (magnetic quantum number) = 3 ?A. 6 B. 4 C. 3 D. 2...
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