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Natali [406]
2 years ago
6

does anyone know how to find the electron configuration of an element without using a periodic table?? group and period is alrea

dy given
Chemistry
2 answers:
snow_lady [41]2 years ago
8 0
For that you have to use the Aufbau principle

For example, writing the electronic configuration of Fe(28)

I recommend that you memorize the aufbau principle. Once you learn it, you don’t need anything else except the atomic number of the element to write it’s electronic configuration.
VARVARA [1.3K]2 years ago
5 0
Hi I’m sorryyyy I’m not sure
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plasma balls

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Plasma balls because of the name and the fact that plasma has the highest heat signature.

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A solution of known concentration is called
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It is called standard solution.

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8 0
3 years ago
Select the name of the element with a condensed ground-state electron configuration of [kr] 5s14d7.
Vilka [71]

elements have equal number of protons and neutrons

the condensed format is when the closest noble gas with the closest electron configuration is given, this closest noble gas atomic number should be lesser than the atoms atomic number

atomic number of Kr is 36

1 electron in 5s subshell and 7 electrons in 4d subshell.

there's a total of 36 + 1 + 7 = 44 electrons

atomic number of the atom is 44

element with atomic number 44 is Ruthenium - Ru

answer is Ru


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3 years ago
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melamori03 [73]

Answer:

Option D. pH= 1.3 strong acid

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From the question given:

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