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ECAT - Practice Test - Chemistry - Atomic Structure - Quiz 7

Practice 10 high yield MCQs on Chemistry from Chapter Atomic Structure for Practice Test. After submission, get instant results with correct answers and detailed explanations. This is Quiz 7 of the series.

61. The ionization energy generally increases across a period because:



62. The electron affinity is the energy change when an electron is added to a neutral atom. It is most exothermic for halogens because:



63. The Pauli exclusion principle is related to the spin quantum number. It states that two electrons in the same orbital must have:



64. The number of nodes in a 3s orbital is:



65. The speed of electron in the first Bohr orbit is approximately:



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Instructions: Select one answer per question. After submitting, you will see your score, correct answers, and explanations.

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