Which Of The Following Correctly Describes The Atomic Makeup For A Neutral Atom Of Cobalt

Atomic Structure

Examples of
Multiple Pick Questions

1.: Which of the post-obit has a positive charge?; (a) proton; (b) neutron; (c) anion; (d) electron; (e) atom
ii.: Rutherford carried out experiments in which a beam of alpha particles was directed at a thin piece of metallic foil. From these experiments he concluded that:; (a) electrons are massive particles.; (b) the positively charged parts of atoms are moving about with a velocity approaching the speed of light.; (c) the positively charged parts of atoms are extremely minor and extremely heavy particles.; (d) the diameter of an electron is approximately equal to that of the nucleus.; (eastward) electrons travel in circular orbits around the nucleus.
3.: Consider the species ⁷²Zn, ⁷⁵Every bit and ⁷⁴Ge. These species accept:; (a) the same number of electrons.; (b) the aforementioned number of protons.; (c) the aforementioned number of neutrons.; (d) the same number of protons and neutrons.; (e) the same mass number.
four.: The neutral atoms of all of the isotopes of the same element accept; (a) different numbers of protons.; (b) equal numbers of neutrons.; (c) the same number of electrons.; (d) the aforementioned mass numbers.; (e) the same masses.
5.: What is the atomic weight of a hypothetical element consisting of two isotopes, 1 with mass = 64.23 amu (26.0%), and one with mass = 65.32 amu?; (a) 65.3 amu; (b) 64.4 amu; (c) 64.9 amu; (d) 65.0 amu; (e) 64.8 amu
6.: Naturally occurring rubidium consists of just two isotopes. One of the isotopes consists of atoms having a mass of 84.912 amu; the other of 86.901 amu. What is the percent natural abundance of the heavier isotope?; (a) 15%; (b) 28%; (c) 37%; (d) 72%; (eastward) 85%
7.: What is the frequency of light having a wavelength of four.50 x ten^-vi cm?; (a) 2.84 x 10^-12 s^-1; (b) 2.ten x 10^four due south^-1; (c) four.29 x 10¹⁴ s^-1; (d) 1.06 x 10²² s^-1; (e) 6.67 ten ten^xv s^-1
eight.: The emission spectrum of gold shows a line of wavelength 2.676 10 ten^-7 m. How much energy is emitted as the excited electron falls to the lower energy level?; (a) 7.43 ten 10^-xix J; (b) v.thirty x 10^-20 J; (c) half-dozen.05 ten x^-19 J; (d) 3.60 x 10^-xx J; (e) 5.16 x ten^-xx J
9.: Which of the responses contains all the statements that are consistent with the Bohr theory of the atom (and no others)?; (1) An electron can remain in a particular orbit equally long as it continually absorbs radiation of a definite frequency.; (2) The lowest energy orbits are those closest to the nucleus.; (3) An electron tin can leap from the K trounce (north = 1 major energy level) to the M shell (n = iii major energy level) by emitting radiation of a definite frequency.; (a) 1,ii,3; (b) 2 only; (c) 3 only; (d) 1,two; (e) two,3
10.: The Heisenberg Principle states that _____________.; (a) no 2 electrons in the same atom tin accept the same fix of four quantum numbers.; (b) two atoms of the aforementioned element must take the same number of protons.; (c) it is impossible to determine accurately both the position and momentum of an electron simultaneously.; (d) electrons of atoms in their ground states enter energetically equivalent sets of orbitals singly before they pair up in whatsoever orbital of the gear up.; (e) charged atoms (ions) must generate a magnetic field when they are in motility.
11.: Which statement about the four quantum numbers which describe electrons in atoms is incorrect?; (a) north = principal breakthrough number, n = ane, 2, 3, ......; (b) l = subsidiary (or azimuthal) quantum number, 50 = ane, two, 3, ... , (north+1); (c) m_l = magnetic quantum number, m_l = (-l), .... , 0, .... , (+l); (d) grand_s = spin quantum number, m_s = +1/ii or -1/2.; (due east) The magnetic quantum number is related to the orientation of atomic orbitals in space.
12.: Which atomic orbital is spherical in shape? (Note: yous should know and be able to recognize the shapes of the s orbital, p_x, p_y, and p_z orbitals, and d_xy, d_yz, d_xz, d_x ii _-y 2 and d_z 2 orbitals.); (a) 2s; (b) 3p; (c) 3d; (d) 4f; (east) they are all spherical
13.: The maximum number of electrons that can be accommodated in a sublevel for which l = 3 is:; (a) 2; (b) ten; (c) 6; (d) xiv; (e) 8
14.: The ground state electron configuration for arsenic is:; (a) [Ar] 4s² 4p¹³; (b) [Kr] 4s² 4p^one; (c) 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹² 4s² 4p¹; (d) 1s^two 2s^two 2p^{half dozen} 3s^two 3p^{half dozen} 4sⁱⁱ 3d^eight 4p⁵; (e) 1s² 2s² 2p^half-dozen 3s² 3p⁶ 4s² 3d^ten 4p³
15.: Which of the following electron configurations is correct for nickel?; (a) [Ar] 4s¹ 3d^viii; (b) [Kr] 4s¹ 4d^viii; (c) [Kr] 4s¹ 3d^eight; (d) [Kr] 4s² 3d^eight; (eastward) [Ar] 4s² 3d⁸
16.: The outer electronic configuration ns²np⁴ corresponds to which one of the post-obit elements in its ground country?; (a) As; (b) Ca; (c) Cr; (d) Br; (east) Southward
17.: In the ground country of a cobalt atom there are _____ unpaired electrons and the atom is _____.; (a) 3, paramagnetic; (b) five, paramagnetic; (c) 2, diamagnetic; (d) 0, diamagnetic; (e) 2, paramagnetic
18.: Which i of the following sets of quantum numbers could be those of the distinguishing (last) electron of Mo?; (a) n = 4, l = 0, k _l = 0, m_s = +i/two; (b) n = five, l = 1, m _l = 9, grand_s = -1/2; (c) northward = 4, l = 2, m _l = -1, g_s = +1/ii; (d) due north = 5, l = ii, m ₅₀ = +2, grand_{due south} = -i/ii; (e) n = three, 50 = two, chiliad _fifty = 0, yard_s = +i/two
19.: How many p electrons are there in an atom of rubidium?; (a) 12; (b) eighteen; (c) 24; (d) 9; (e) 6
20.: A neutral atom of an element has 2 electrons in the first free energy level, 8 in the second energy level and 8 in the third free energy level. This information does not necessarily tell us:; (a) the atomic number of the element.; (b) annihilation almost the chemical element's chemic properties.; (c) the total number of electrons in s orbitals.; (d) the total number of electrons in p orbitals.; (e) the number of neutrons in the nucleus of an cantlet of the element.

Answers:

1. (a) two. (c) three. (c) 4. (c) five. (d) half-dozen. (b) vii. (due east) viii. (a) ix. (b) ten. (c) 11. (b) 12. (a) thirteen. (d) 14. (e) xv. (e) xvi. (due east) 17. (a) 18. (c) xix. (b) 20. (e)

To study any corrections, please electronic mail Dr. Wendy Keeney-Kennicutt.

Source: https://www.chem.tamu.edu/class/fyp/mcquest/ch5.html

Posted by: stormplacrour.blogspot.com

Which Of The Following Correctly Describes The Atomic Makeup For A Neutral Atom Of Cobalt

0 Response to "Which Of The Following Correctly Describes The Atomic Makeup For A Neutral Atom Of Cobalt"

Post a Comment

Iklan Atas Artikel

Iklan Tengah Artikel 1

Iklan Tengah Artikel 2

Iklan Bawah Artikel