Math, asked by kritikakoiri28, 4 months ago

element y has atomic number 21 .in which period does y exist ?

Answers

Answered by Anonymous

2

Step-by-step explanation:

YttriumPeriodperiod 5Blockd-blockElement categoryTransition metalElectron configuration[Kr] 4d1 5s2

Previous Question

Next Question

Similar questions

English, 2 months ago

kamala das has remarkable command over...

Math, 2 months ago

split the middle term. find zeroes of alpha and beta 1)2x^2+12x+16...

Math, 2 months ago

answer fast with explenetion please...

Hindi, 4 months ago

(ग) 'गौतम के पास एक कार है जो बैटरी से चलती है।' वाक्य में प्रधान उपवाक्य है- एक कार है बैटरी से गौतम के पास जो बैटरी से चलती है।...

Sociology, 4 months ago

Why is ecological crisis occured in modern times? What are its effects?

Music, 10 months ago

what does every colour in the Indian flag symbolise...

Chemistry, 10 months ago

what is olfactory indicators?

English, 10 months ago

world grown so cold world grown so cold describe this line ...