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solmaris [256]
3 years ago
10

Electronic configuration for Cr, Cu, Cr+2, Cu+2, Mn+2

Chemistry
2 answers:
Zanzabum3 years ago
8 0
Chromium (Cr): 2, 8, 8, 6
Copper (Cu): 2, 8, 8, 11
Chromium+2 (Cr+2): 2, 8, 8, 4 (if the ion retains a positive charge then the amount of electrons will decrease)
Copper+2 (Cu+2): 2, 8, 8, 9
Manganese+2 (Mn+2): 2, 8, 8, 5
Brums [2.3K]3 years ago
4 0
The electron configuration for the following elements and ions:
Cr 2-8-13-1
Cu 2-8-18-1
Cr+2 2-8-12
Cu+2 2-8-17
Mn+2 2-8-13

a positive sign next to an atom indicates that it lost electrons.
a negative sign indicates that it gained electrons
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A group or family represents the *blank* on the periodic table
alekssr [168]
The answer is vertical column
8 0
3 years ago
Is it the power of material evidence that wins, not the authority of experts that
kvasek [131]

Yes, it is the power of material evidence that wins.

  • Evidence used to support or refute a scientific theory or hypothesis is known as material evidence.
  • Evidence is also used by scientists in various contexts, such as when they apply ideas to real-world issues.
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Therefore, it is the power of material evidence that wins, not the authority of experts that

proves an answer in Science.

Learn more about hypothesis here: brainly.com/question/606806

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7 0
1 year ago
Identify whether longhand notation or noble-gas notation was used in each case below.
n200080 [17]

Answer:

The given electronic configuration is long hand notation.

Explanation:

Long-hand notation of representing electronic configuration is defined as the arrangement of total number of electrons that are present in an element.

Noble-gas notation of representing electronic configuration is defined as the arrangement of valence electrons in the element. The core electrons are represented as the previous noble gas of the element that is considered.

The given electronic configuration of potassium (K):  

The above configuration has all the electrons that are contained in the nucleus of an element. Thus, this configuration is a long-hand notation.

6 0
3 years ago
Write the chemical symbol for the ion<br> with 33 protons and 36 electrons
Rashid [163]
  • We cannot change protons of any element
  • So the atomic number is 33
  • The element is Arsenic(As)

Now here is 36 electrons so it's. tri cation.

Symbol

\\ \tt\hookrightarrow As^{3+}

5 0
2 years ago
Which situation would violate the octet rule?
jolli1 [7]

Answer:

Explanation:

According to octet rule there should be 8 electrons in the atom's subshell/valence shell. Giving it the same electronic configuration as a noble gas.

among the options:

c) option is correct, as 5 bonds to carbon is violating the octet Rule, 5 bonds means 10 electrons exceeding the noble gas configuration and violets the octet rule.

All the other options are are incorrect, they are following

octet rule. Three bonds of carbon is possible in the case of carbocation.

6 0
3 years ago
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