17 Which of the following is the electron B. 5.83 9L C. 224 gL D. 27...
A) As B) Sb C) P D)Bi E)N 10. In which of the series of elements listed below would the elements have most nearly the same atomic radius? A) Na, K. Rb, Cs B)F, CI, Br.I C) Na, Mg. Al, Si D) Sc, Ti, V, Cr E)B, Si, As, Te Which of the following properties, in general, increases from left to right across a period in the periodic table? A) ionic charge 11、 B) atomic radius C) density D) ionization...
Sample Examination 17. All of the following are polar molecales E (A) 1HS B) NIl (D) PPs (E) HNO Which distribation of electrons in hybrid orbitals is associated with the s the xenon tetrafluoride, XeF4, molecule? I8. (A) sp (C) s (D) dsp (E) sp 19. When each member of the following pairs of solutes is dissolved in separate contalper of water, each member of the pair of solutions has a different color EXCEPT for the pair (A) ZnS04 and...
I need help urgently!!! please can somebody help me. UA-XX A.BAA . . - Nome AULAUBOU AB Heading 1 Heading 2 Heating 2. The molecules of different samples of an ideal gas have the same average kinetic energies at the same A) pressure B) temperature C) volume. D) density 3. Which of the following would have a higher rate of diffusion than CH,? a) No b) a c) ch d) CH 4. Which gas has molecules with the greatest average...
30. Which of the following molecules is polar? A) CC14 B) NH3 C) 503 D) CO2 E) BeF2 31. Rank the following elements in order of increasing atomic size: Ge, Rb, Ne, S A) Ge<RbNe <S B) Rb <S<Ne <Ge CS<Ne < Ge<Rb D) Ne<S<Ge<Rb E) Rb <Ge<Ne<S 32. Select the pair that has the larger atom or ion listed first. A) P, P3- B) Na+, Na C) S, 52- D) Mg2+, Mg E) Br, Kr 33. Which element has...
17. Identify the elements that have the following electron arrangements: b. 2,8,6 а. 2,4 c. 2,8,8 d. 2,1 f. 2,8, е. 2,8 g. 2,8,8,2 18. Write the group number and draw the electron-dot symbol for each of the following elements: a. sulfur b. nitrogen c. calcium d. sodium 19. The atomic number of an atom is equal to the number of A) neutrons plus protons B) nuclei C) electrons plus protons E) neutrons D) protons 20. The number of neutrons...
Need the answers to all of them. in its ground state? Which of the following atoms is paramagnetic B) bariwm (ba) O cadmium (Cd 1D) ymerbium (Yb) E) argon (Ar) 16. ー 17. Which of the following statenments is true? The kpion Is orbital is smaller than the helium is cebital because krypton's nuclear charge draws the electrons closer because krypton's p The krypton 1s oebital is smaller than the helium Is orbital and d orbitals crowd the s orbitals...
14. Select which of the following repulsive interactions between electron pairs would be sma c. All involve equal repulsive forces. 15. In which bond does the Hatom have the highest electron density? d. IHO a. HHCI b. HLI 8. HC c. HN 16. Which diatomic molecule has the least number of valence electrons? a. O d. Clz b. N2 e. F2 c. NO 17. Identify the polar molecule. a. CF4 b. SiH c. CHCI d. CS e. CO 18. For...
9. Which elements have a partially filled p sublevel in their electron configuration? or files A) alkali metals B) alkaline earth metals C) halogens D) noble gases E) transition metals 1st 3 CHEM 1 10. Which element has the abbreviated electron configuration [Ne]3s23pl? Α) ΑΙ B) P C ) Si DCI E) Ar 11. What is the abbreviated electron configuration for Fe? A) [Ar]4s9 B) [Ar]3d C) [Ar]45236 D) [Ar]4:24p6401 E) [Ar]4,2347
Which element docs the orbital diagram represent: A. Fluorine B. Sodium C. Nitrogen D. Magnesium Which is the correct condensed electron configuration for the Al^3+ ion? A. [Ne] B. [Ne]3s^1 3p^1 C. [Ne]2s^23p^1 D. [Ar]3s^13p^1 Why does atomic radius generally decrease across a period (from left to right)? A. Z_eff is greater so outer electrons are drawn tighter B. Z_eff is smaller so outer electrons arc drawn tighter C. Z_eff is greater so inner electrons are drawn tighter D. Z_eff...
What is the Zn for the outermost electron of He? [2 marks) a b. C d. e. 1.65 0.65 1.70 1.00 None of the above What is the effective nuclear charge experienced by one of the 4s electrons of Br? [2 marks] a. 7.60 b. 5.45 C 9.35 d. 7.65 e. None of the above 3. What is the value of the screening constant for one of the d electrons of Br? [2 marks] a. b. C d. e. 18.40...