Physics, asked by badribadri53803, 6 months ago

write the names of the first and last elements belong to 5th period

Answers

Answered by ayush111o

2

Answer:

rubidium and xenthium are the two first and last element in 5 th period.

Answered by JstSamIt

1

Answer:

1st element is :

Rubidium

atomic mass: 85amu

atomic number: 37

the last element is :

Xenon

atomic mass: 131amu

atomic number: 54

THANK YOU :)

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