- Feb 07, 2014 To explain Chromium's electron configuration, we could introduce. The exchange energy #Pie# (a stabilizing quantum mechanical factor that is directly proportional to the number of pairs of electrons in the same subshell or very close-energy subshells with parallel spins).
- Name: Chromium Symbol: Cr Atomic Number: 24 Atomic Mass: 51.9961 amu Melting Point: 1857.0 °C (2130.15 K, 3374.6 °F) Boiling Point: 2672.0 °C (2945.15 K, 4841.6 °F) Number of Protons/Electrons: 24 Number of Neutrons: 28 Classification: Transition Metal Crystal Structure: Cubic Density @ 293 K: 7.19 g/cm 3 Color: gray Atomic Structure.
- How to Write the Electron Configuration for Chromium (Cr, Cr2+, and Cr3+) In order to write the Chromium electron configuration we first need to know the number of electrons for the Cr atom (there are 24 electrons). Once we have the configuration for Cr, the ions are simple. When we write the configuration we'll put all 24 electrons in orbitals around the nucleus of the Chromium atom.
Chromium (Cr) is a silver metal that has the atomic number 24 in the periodic table. It is a Transition metal and located in Group 6 of the periodic table. It has the symbol Cr. Use of the information, documents and data from the ECHA website is subject to the terms and conditions of this Legal Notice, and subject to other binding limitations provided for under applicable law, the information, documents and data made available on the ECHA website may be reproduced, distributed and/or used, totally or in part, for non-commercial purposes provided that ECHA is.
24 because atomic number = # of protons and electrons
While atomic mass - atomic number = # of neutrons
24. In an uncharged atom the number of electrons always equals the number of protons, which is the atomic number.
Option (c) is the correct answer.
Atomic number means the number of protons present in an element. Whereas atomic mass means the sum of total number of protons and neutrons present in an element.
Also, it is known that when an atom is neutral then its number of protons equal number of electrons.
For example, atomic number of chromium is 24 this means that it contains 24 protons. Atomic mass of chromium is 52.
So, number of neutrons present in chromium is calculated as follows.
Atomic mass = no. of protons + no. of neutrons
52 = 24 + no. of neutrons
no. of neutrons = 52 - 24
Thus, we can conclude that there are 28 electrons in an uncharged atom of chromium.
Answer : The correct option is, '24'
Element = Chromium
Atomic number = 24
Mass number = 52
The electronic configuration of chromium atom is,
As per electronic configuration, the number of electrons are = 24
Atomic number = Number of electrons = Number of protons
Mass number = Number of protons + Number of neutrons
As we know that the atomic number is equal to the number of electrons. So, the number of electrons in an uncharged atom of chromium are '24'.
Chromiumis represented by the element Cr with an atomic number of 24 and a molar massof 52 gram per mole. The number of protons in the Chromium atom is the atomicnumber, so it has 24 protons. And the protons of chromium atom is equal to thenumber of electrons, so 24 electrons.
The answer t this question is B. 24
I took the test and got 100 %
air exerts forces on falling objects near earth’s surface.
the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.
for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.
for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.
this is an example of 'committed' time.
committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.
Ineed with physics problem: a person walk at a speed of 7.83 x 10^-10 meter/nanosecond. convert this speed to meters/second using the factor-label method and the metric prefixes
In the circuit shown below, with each bulb holding a resistance of 60 ohms, how many amps of current are flowing? express your number as a decimal.
Arrange the images in order to show how lake-effect snow occurs.
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An atom of the element chromium has an atomic number of 24 and a mass number of 52. How many electro...
from Wikipedia, the free encyclopedia
Chromium is a chemical element in the periodic table that has the symbol Cr and atomic number 24.
Chromium is a steel-gray, lustrous, hard metal that takes a high polish, and has a high melting point.
It is also odourless, tasteless, and is somewhat malleable.
Note: The above text is excerpted from the Wikipedia article 'Chromium', which has been released under the GNU Free Documentation License.
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