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kap26 [50]
3 years ago
12

Use the periodic to write the electron configuration for rubidium (Rb) in noble-gas notation. . Rb: [Kr]s

Chemistry
2 answers:
Mashcka [7]3 years ago
6 0

Answer:

the answer is 5

Explanation:

gladu [14]3 years ago
5 0

Answer:-

[Kr] 5s1

Explanation:-

Atomic number of rubidium = 37

Atomic number of Kr = 36

So only 1 electron needs to be assigned an orbital.

Kr is also the last element of the fourth period

So the shell number for the 1 electron will be 5 since it is after Kr

Since s subshell is filled first the electron will go into 5s.

Hence the electron configuration for rubidium (Rb) in noble-gas notation is

[Kr] 5s1

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General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
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<u>Step 1: Define</u>

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<u>Step 4: Check</u>

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