4. Which of the following elements would have a larger electron affinity? Explain why. a. C...
An atom of which of the following elements has the highest electron affinity? Select one: a. Br b. Cl c. Rb d. As e. Se An atom of which of the following elements is not diamagnetic in the ground state? Select one: a. Rn b. Ca c. Pt d. Cd e. All are diamagnetic. The general electron configuration for the outermost electrons of the halogens is Select one: a. ns2np4 b. ns2np5 c. ns2np6 d. ns2np2 e. ns2np3 What...
Sodium has an electron affinity of-52.9 kJ/mol, while the electron affinity of magnesium is +40 kJ/mol. 4. a) Which of these elements may, under extreme circumstances, be made into an anion? b) Explain why the electron affinity of magnesium is larger than that of sodium.
An atom of which of the following elements has the most negative electron affinity? a) K b) Cl c) Br d) Se e) N
For each of the following pairs of elements, indicate which will have the greater first electron affinity, EA,: I. Rb or Sr II C or N III O or F A) Rb, C, F B) Sr, N, F C) Rb, N, O D) Sr, C, F E) Sr, C, O
need explanation not just answer Question 5 Each of the following elements has a positive electron affinity. In each case, construct its valence orbital energy diagram and use it to explain why the anion is unstable. a) N b) Mg c) Zn
Arrange the elements in each of the following groups in order of increasing electron affinity (more negative value): B, C, N, O, F
20. An atom of which of the following elements has the smallest ionization energy? A. CI C. Si B. P DS 21. An atom of which of the following elements has the largest second ionization energy? A. Cs С Ро B. Pb D. Ba Q89. 22. Which of the following forms the most stable anion in the gas phase? A. CI (electron affinity -349 kJ/mol) B. S (electron affinity = -200 kJ/mol) CO (electron affinity = -141 kJ/mol) D. C(electron...
Q42. Which elements have these electron configurations? Give both the symbol and the name: a. 1s 2s22p": b. 1s?2s22p 3s': c. 1s 2s 2pº3s 3p: d. [Ar]4s 3d: e. (Ne]3s 3p": f. [Kr]5s4d!º5p a
1. Which of the following is a correct set of quantum numbers for an electron in a 4p orbital? a. n = 4, l = 1, ml = 3 b. n = 4, l = 1, ml = +1 c. n = 4, l = 0, ml = -1 d. n = 4, l = 2, ml = 0 2. Arrange the elements K, Mg, Ar, and Na in increasing order of the energy required to remove the first electron...
Which of the following have the highest electron affinity? Which of them has the strongest metallic character? Explain: Na, Mg, O, C, S