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7. A neutral atom has two electrons with n-1, eight electrons with n 2, eight electrons...
The following properties are observed for an unknown element. Identify the element from its properties. (a) The neutral atom has two unpaired electrons. (b) One of the valence electrons in the ground-state atom has ml = +1. (c) The most common oxidation state is +4. (d) If an electron in a hydrogen atom were excited to the same principal quantum level, n, as the valence electrons in an atom of this element, and fell to the n - 1 quantum...
101. Which atom in its ground state has two unpaired electrons in the electron configuration?a. Mg b. P c.S d. Cl 102. Which of the following is the correct ground state electron configuration of the element germanium (Ge)?
In the ground state, an atom contains 2 p electrons in the n=3 principal quantum shell. What is the total number of electrons contained in this atom?
(1) 1 (2) 2 6. How many unpaired electrons does an atom of phosphorous have in its ground state? (3) 3 (4) 5 A possible set of quantum numbers for the last electron added to complete an atom of silicon (SI) in its ground state is A 4 0 0 +% B 3 0 +1 - C. 4 1 -1 +² D 3 1 +1 -2 (1) A (2) 8 (3)C (4) D 8. A possible set of quantum numbers...
Enter the number of electrons in each energy level (shell) for each of the elements. If the energy level does not contain any electrons, enter a 0.0. It may help to refer to the periodic table. He: ?=1: n=2: n=3: n=4: F: n=1: n=2: n=3: n=4: P: n=1: n=2: n=3: n=4: Ca: n=1: n=2: n=3: n=4 What is the neutral atom that has its first two energy levels filled, has 55 electrons in its third energy level, and has no...
1. Name the neutral element(s) in the fourth period of the periodic table which has: a) 7 valence electrons (name two elements) b) [Ar] 4s23d104p2 configuration c) the alkaline earth metal d) the largest atomic radius e) the halogen f) diamagnetic electron configurations (name all elements)
6. How many unpaired electrons does an atom of phosphorous have in its (3) 3 (4) 5 its ground complete an atom 7. A possible set of quantum numbers for the last electron added to come ground state is mg A 4 0 + 2 B 3 0 +1 - C. 4 1 -1 +2 D. 3 -72 (1) A (2) B (3) C (4) D 8. A possible set of quantum numbers to describe an m. = + (2)...
Quiz #1A Name Good Luck 1. What term is used to describe atoms of the same element that have different A. radioactive B. constituents C_isotopes D. telomers E. isomers 2. What is always true for a neutral atom? 5 pts masses? 5 pts A. There is an equal number of protons and neutroes. C. There is an equal number of protons, neutrons, and electrons. D. The namber of protons B_There is an equal number of prosons and clectrons E. The...
Identify the missing information for each neutral isotope. A Se atom has a mass number of 79. Determine the number of neutrons, protons, and electrons in this neutral isotope. number of neutrons: number of protons: number of electrons: A neutral isotope has a mass number of 65 and 36 neutrons. Identify the element symbol of this isotope and determine the number of protons and electrons. element symbol: number of protons: number of electrons: A neutral isotope has 49 neutrons and...
6. How many unpaired electrons does an atom of phosphorous have in its ground state? (3) 3 (4)5 (1) 1 (2) 2 7. A possible set of quantum numbers for the last electron added to complete an atom of silicon (Si) in its ground state is m eo m, A. 4 0 +% -% В. 3 0 +1 C. 4 1 -1 +% D. 3 1 +1 -% (1) A (2) B (3) C (4) D 8. A possible set...