Which of the following pair of elements belongs to same period of the periodic table?
  • a)
    P, Se
  • b)
    Mg, Sb
  • c)
    Ag, Cl
  • d)
    Ca, Zn
Correct answer is option 'D'. Can you explain this answer?

NEET Question

By Najmul Hasan · Feb 12, 2020 ·NEET
22 Answers
Baby Ghosh answered Feb 12, 2020
Ca and zn are same periodic elements that is 4th element

Sangeetha Sudhagar answered Mar 20, 2020
Ca and Zn present in same 4 th period and others are present in different period

Vishwajeet Dhumal answered Apr 08, 2020
Ca and zinc belong to the same period because 1st period contains 2 elements, 2nd and 3rd period contains 8 elements, 4th and 5th period contains 16 elements. atomic numbers of Ca and Zn are 20 and 30 respectively. If we add elements in 1st 2nd and 3rd period, we get 18 elements. Now the 4th period will contain the next 16 elements, which would be till 34. since 20 and 30 both comes in between 18 and 34, therefore Ca and Zn belong to the same period.

Prakash Gharte answered Mar 25, 2020
Correct answer is option D

Vijayam6309002257 Vijaya answered Mar 31, 2020
In periodic table ca, zn belongs to 4th period

Muskaan Maqbool answered Mar 26, 2020
Ca and Zn...they both belong to 4th period

Kiran Sarmah answered Feb 13, 2020
Ca and Zn both belongs to 4th period of the periodic table.

Vichu Selvakumar answered Mar 31, 2020
Yes we can find the period no by seeing its highest. principle quantum no in ca it has xe 4s2 and for zn xe 3d10 4s2

Vibha Maurya answered Apr 07, 2020
Mordern periodic table is based on the atomic number of elements,therefore...reason both of them belong to same group as Magnesium...Is there any similarity in the atoms of these elements- (b) Mg, Sb

Ankita Malik answered Mar 20, 2020
According to period ca and zn are fourth group element in periodic table

Sanjana Saravanan answered Mar 25, 2020
Belong to 4 period

Vishal Kumar answered Mar 09, 2020
Ca and Zn are same periodic table which are situated in the 4th period

Aishwarya Shree answered Mar 14, 2020
Ca-20
2,8,8,2
Zn-30
2,8,8,12
both have same no.of orbitals.
so they both belongs to the same period
:. correct answer is d)

Adithya Shasan answered Feb 22, 2020
Option D : ca, zn

Pranjal Shukla answered Feb 12, 2020
Ca and Zn both are 4th period elements.

Polock Golder answered Mar 03, 2020
Ca and Zn....

Nama Gokul answered Apr 08, 2020
Ca sc ti v cr MN Fe co Ni cu zn
belong to same period

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