10. D) 7
11. A) a halogen
12. A) O, S, Se
10) How many valence electrons are there in an atom with an electron configuration of 1s...
DJ SL Bodfre E) none of the above 48. How many valence electrons are in a chlorine atom? A) 1 B) 7 C) 17 D) 10 E) none of the above 49. Which of the following elements has the electron configuration of 3s 3p in its outermost shell A) Si B) Al C) CI D) S E) none of the above 50. If the electron configuration of a ground state sodium atom is 1s 2s2p635), the electron configura sodium cation...
What is the ground-state electron configuration of the Al^3+ ion? a. 1s^2 2s^2 2p^6 3s^2 3p^4 b. 1s^2 2s^2 2p^6 3s^2 3p^1 c. 1s^2 2s^2 2p^3 d. 1s^2 2s^2 2p^1 e. 1s^2 2s^2 2p^6 Which of the following is the correct noble gas electron configuration for an ion of barium? a. [Kr]5s^2 4d^10 5p^6 6s^2 b. [Kr]5s^2 5p^6 c. [Kr]5s^2 4d^10 5p^6 6s^1 d. [Kr]5s^2 4d^10 5p^6 e. [Kr]5s^2 4d^10 5p^6 6s^2 6p^2 How many orbitals are possible when l...
6. Identify the following: a. An-excited state of this element has the electron configuration 1s 2s 2p Beryllium b. The ground-state electron configuration is [Ne]3s 3p Sulfur c. An excited state of this element has the electron configuration [Kr5s4dº5p 6s' Silver d. The ground-state electron configuration contains 3 unpaired 5p electrons
The following Lewis diagram represents the valence electron configuration of a main-group element. X• The element in period 6 that has this valence electron congfiguration is BA 3A 4A SA 6A 7A He se Na Mg 3B 4B 5B 6B 78 mm 88 18 28 Al Si P S Cl Ar Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Zr Nb Mo Tc Ru RN Pa Rg Cain Sn Sb Te Ba La HT Ta...
need help with all ... 10. Calculate the wavelength of the spectral line in the comission spectrum of hydrogen for which land 3. 277 mm b. 103 mm c. 345 mm d. 397 mm 11. For the wavelength emitted by hydrogen above question 10). what region of the electromagnetic spectrum does this photos belong to? Infrared b. Visible c. Ultraviolet d. X-Ray Radio waves 12. Magnesium forma m a mic ion which has the clectronic configuration of a moble as...
- Chemistry: The Molecular Nature of Matter and Change - Silberberg/Amatels, Se, Electron Configuration and Chemical Match each electron configuration to the correct description. Assume that all electron configurations represent ions. Drag statements on the right to match the left. noble gas configuration cs 1s²2s²2p 3s 3p%3d104s? pseudo-noble gas configuration 1s2s 2p 3s 3p Inert pair configuration o 1s 2s22p 3s 3p%3d" Do yo sknow the answer? I know it Think so Unsure No idea
8. How does the number of valence electrons determine whether an element is considered to be an alkali metal, an alkaline earth, a halogen or a noble gas? Be specific.
1s 2s 2p 3s*3p 4s 3d"4p 5s4d? 17. Which ion with a +1 charge has the electron configuration 1s 2s 2p 3s 3p 3d 4s 4p? Which ion with a -2 charge has this configuration? 18. Which of the following atoms contains only three valence electrons: Li, B, N, F, Ne? 19. Circle the atoms with two unpaired electrons. (a) Mg (b) Si (c) S 20. Place the following in order of increasing atomic radius. As 0 Br A) As...
Part A An element with the same number of valence electrons as the element with the electron configuration 1s 2s 2p 3s 3pºis sulfur. argon. O potassium lodine. oxygen. Submit Request Answer Provide Feedback Next >
please only answers for questions 1-23. No work needed 1) Give the ground state electron configuration for the ion of Ba. A) [Krj5s24d 105pfes2 B) (KrjS24d105ph26p2 9(KrjS24d105p6 D) Kr525p E) [Kr]5s24d105pés 2) Choose the valence orbital diagram that represents the ground state of Se A) 1 11 1 4s 4p в) 1 11 4s 4p C) 1L 3s Зр D) 11 1L 1 3s Зр E) 1 1 4s 4P 3) How many valence electrons do the alkaline earth metals...