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Questions and Answers
Which of the following elements make up over 90% of the human body?
Which of the following elements make up over 90% of the human body?
- Oxygen, Hydrogen, Nitrogen, Potassium
- Oxygen, Hydrogen, Nitrogen, Carbon (correct)
- Oxygen, Hydrogen, Nitrogen, Iron
- Oxygen, Hydrogen, Nitrogen, Calcium
Which energy shells are present in an atom?
Which energy shells are present in an atom?
- K, L, M, N, O, P, Q (correct)
- J, K, L, M, N, O, P
- A, B, C, D, E, F, G
- X, Y, Z, W, V, U, T
How many electrons are present in the d sublevel?
How many electrons are present in the d sublevel?
- 2
- 6 (correct)
- 10
- 14
What is the atomic radius?
What is the atomic radius?
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What is metallic character?
What is metallic character?
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