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xeze [42]
4 years ago
10

The electron configuration for chromium is 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 5 4 s 1 instead of 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3

d 4 4 s 1 . The configuration is an exception to the _____.
A Heisenberg uncertainty principle
B aufbau principle
C Schrödinger equation
D Pauli exclusion principle
Chemistry
2 answers:
Bond [772]4 years ago
8 0
B. Is your answer..............................
Reptile [31]4 years ago
4 0

Answer:

B

\

Explanation:

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What category is most of the elements part of
rjkz [21]

Answer:

transition metals

Explanation:

they're the elements in yellow in the picture

6 0
3 years ago
A laboratory analysis of a 100 g sample finds it is composed of 1.8 g hydrogen, 56.1 g sulfur, and 42.1 g oxygen. What is its em
Neporo4naja [7]

Answer: The empirical formula is H_2S_2O_3

Explanation:

If percentage are given then we are taking total mass is 100 grams.

So, the mass of each element is equal to the percentage given.

Mas of H = 1.8 g

Mass of S = 56.1 g

Mass of O = 42.1 g

Step 1 : convert given masses into moles.

Moles of H =\frac{\text{ given mass of H}}{\text{ molar mass of H}}= \frac{1.8g}{1g/mole}=1.8moles

Mass of S =\frac{\text{ given mass of S}}{\text{ molar mass of S}}= \frac{56.1g}{32g/mole}=1.8moles

Moles of O=\frac{\text{ given mass of O}}{\text{ molar mass of O}}= \frac{42.1g}{16g/mole}=2.6moles

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For H = \frac{1.8}{1.8}=1

For S = \frac{1.8}{1.8}=1

For O =\frac{2.6}{1.8}=1.5

Converting to whole number ratios

The ratio of H: S: O= 2: 2: 3

Hence the empirical formula is H_2S_2O_3

7 0
3 years ago
PLEASE HELP NOOWWW I WILL GIVE BRAINLIEST
Misha Larkins [42]

Answer:

c

Explanation:

5 0
3 years ago
Picture attached.........
aliina [53]

Answer: The Answers are: 0.31g & 0.011mol & 3.34g & 0.016mol.

Explanation: Solved in the attached picture.

7 0
3 years ago
How many valence electrons are in a neutral atom of magnesium?
Lynna [10]
There are 2 valence elcetrons
5 0
4 years ago
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