A) Alkali metal B) Element C) Atomic number D) Ionic bond Answer: D Explanation: Ionic bond means the attraction between […]
A) Covalent bond B) Alkali metal C) Molecule D) Atomic number Answer: D Explanation: Atomic number means the number of […]
A) Nucleus B) Covalent bond C) Halogen D) Molecule Answer: D Explanation: Molecule means two or more atoms bonded as […]
A) 22 B) 29 C) 13 D) 36 Answer: C Explanation: Aluminium has atomic number 13. That means each aluminium […]
A) Its number of neutrons B) Its number of protons C) Its number of electrons plus neutrons D) Its mass […]
A) 27 B) 34 C) 53 D) 18 Answer: D Explanation: Argon has atomic number 18. That means each argon […]
A) 79 B) 2 C) 33 D) 9 Answer: C Explanation: Arsenic has atomic number 33. That means each arsenic […]
A) 13 B) 4 C) 20 D) 27 Answer: B Explanation: Beryllium has atomic number 4. That means each beryllium […]
A) 14 B) 21 C) 5 D) 28 Answer: C Explanation: Boron has atomic number 5. That means each boron […]
A) 35 B) 82 C) 4 D) 11 Answer: A Explanation: Bromine has atomic number 35. That means each bromine […]
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