A. Circle the true statements. 1 When an electron in a hydrogen atom changes its

Question

A. Circle the true statements. 1 When an electron in a hydrogen atom changes its principal quantum number from 1 to 3 a. it absorbs energy, usually in the form of light. B. it gives off energy c. delta E > 0 d. its electron configuration at that excited state could be 3s^1. 2. A 3p subshell a. can have an electron with a quantum number of l = 2. b. can hold a maximum of 6 electrons c. can have an electron with a quantum number ml= - 2, d. can have a maximum of 3 unpaired electrons for an atom in the ground state. 3 An atom has electrons in both orbitals A and B In this atom, orbitals A and B must differ in a n b. l c. ml d. ms 4 An important factor in determining the size of the halogens in their normal ground state is a. the number of unpaired electrons b. the number of electrons in the outermost shell c. the number of principal energy levels. d. the effective nuclear charge (Zeff) e. the number of electrons in l = 1. 5 The first two quantum numbers (n, l ) of the highest energy electron of scandium in the ground state are a. 3, 0 b. 3, 1 c. 3. 2 d 4, 0 e. 4, 1

Explanation / Answer

1)a&c

2)b&d

3)b&c

4)b,c&d

5)c&d

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