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An electrically neutral gallium atom has 31 electrons around its nucleus. Which of the following is the correct electronic configuration for a gallium atom that is triply-ionized? 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p1 1s2 2s2 2p6 3s2 3p6 4s2 1s2 2s2 2p10 3s2 3p6 4s2 3d4 1s2 2s2 3s2 2p6 3p4 1s2 2s2 2p6 3s2 3p6 4s2 3d8
What is the ground state electron configuration of Rubidium ( Rb ) ? a) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1 c) 5s1 b) 1s2 2s2 2p6 3s2 3p6 4s2 4p6 4d10 5s1 d) 1s2 2s2 2p6 3s2 3p6 3d10 4p6 5s2 5p2
REFER TO THE ELECTRON CONFIGURATIONS SHOWN BELOW. (A)1s2 2s2 2p6 3s2 3p4 (B)1s2 2s2 2p6 3s2 3p6 4s1 3d5 (C)1s2 2s2 2p8 3s2 3p6 (D)1s2 2s2 2p6 3s2 3p6 4s2 3d4 (E)1s2 2s2 2p6 3s2 3p6 5 -electron configuration of Cr 6 -violates Pauli exclusion principle 7 -noble gas configuration with explaniation
Which quantum number gives information about the shape of an orbital ? angular quantum number (l) magnetic quantum number ( ml ) principal quantum number ( n) spin quantum number ( ms ) How many unpaired electrons are in S ? 0 1 2 3 What is the ground state electron configuration of Cr ? 1s2 2s2 2p6 3s2 3p6 4s1 3d5 1s2 2s2 2p6 3s2 3p64s2 3d1 4p4 1s2 2s2 2p6 3s2 2p6 3s2 3p6 4s2 3d4 1s2 2p6...
2. What is the energy needed to raise an electron in energy level? the hydrogen atom from the second energy level to the third 2. α) 1.52 x 104J b) 3.63 x 10-19 2.18x 10-191 d) 4.48 x 10-19 3.03 x 10-19 Which quantum number determines the subsbell occupied by an clectron (a p. d. f.etc. a) e b) 4. The value of E that is related to the following orbital is: a) o 12 3) 4 5. The correct...
Which of the following electronic configurations is not possible: a) Li-3: 1s2 2s1 b) N-7: 1s2 2s2 2p3 c) Ne-10: 1s2 2p6 3s2 d) K-19: 1s2 2s2 2p6 3s2 3p6 4s1 e) All of the above are possible.
1. Which element has the electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d5 ? a. Br b. Mn c. Nb d. Tc 2. What is the value of 27oC on the Fahrenheit scale? Group of answer choices a. -6.8 b. 106 c. 300 d. 81 e. none of these 3. Which of the following atoms has the largest radius? Group of answer choices a. S b. Se c. Br d. O
Match the predicted ground state electron configuration with the following elements: a. oxygen b. cesium c. lithium e. d. phosphorus gallium f. lanthanum 6. 1s 2s 2p 3s2 3p6 4s2 3d10 4p6 582 4d10 5p6 652 44 7. 1s2 2s2 2p 3s2 3p™ 452 3dłº 4p1 8. 1s2 2s 2p4 9. 1s 2s 2p™ 352 3p™ 452 3d10 4p6 552 4d10 5p 6s! 10. 1s 2s 2p6 3s 3p3
The electronic configuration for sodium is 1s2 2s2 2p6 3s1, and the electronic configuration for potassium is 1s2 2s2 2p6 3s2 3p6 4s1. It requires 5.1 eV to remove the outermost electron (3s1) from sodium. What can you say about the energy required to remove the outermost electron from potassium (4s1)? Since each is the outermost electron around the atom, the energy required will be equal to 5.1 eV. Since each electron is in an s orbital, the energy required...
A) What volume (mL) of 0.0821 M phosphoric acid can be neutralized with 151 mL of 0.34 M sodium hydroxide? What volume (mL) of 0.0821 M phosphoric acid can be neutralized with 151 mL of 0.34 M sodium hydroxide? 12.6 1800 208 625 1880 B) A green laser pointer emits light with a wavelength of 537 nm. What is the frequency of this light? C) Consider the following electron configurations to answer the question: (i) 1s2 2s2 2p6 3s1 (ii)...