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23-09-2020
Chemistry

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How many protons are in an atom of strontium?

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IndiaXA12 IndiaXA12

23-09-2020

Answer:

38

Explanation:

Symbol: Sr

Atomic mass: 87.62 u

Electrons per shell: 2,8,18,8,2

Atomic number: 38

Electron configuration: [Kr] 5s2

Van der Waals radius: 255 pm

Valence electrons: two

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