બેરિલિયમ
મેરનેશિયમ
કેલ્હિાયમ
સ્ટોાિયમ
Be
Mg
Ca
Sr
152282
18225222635²
1s22s22p3s23p6452
1s22s22p3s23p6310
4524p5s
1s22s22p%3s 3p63d10452
4p64/105525p96s- or
[Xe]6s2
[an]7s
બેરિયમ
Ba
રેડિયમ
Ra
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Answer:
hello madam what's this all tell me I will answer
or type it in English
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