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Atomic number of which of the following elements is greater than that of Iron?

  1. A
    Manganese
  2. B
    Cobalt
  3. C
    Calcium
  4. D
    Chromium

Solution & Step-by-step Explanation

The atomic number (Z) of Iron (Fe) is 26. Let's examine the atomic numbers of the given options:
Calcium (Ca): Z=20

Chromium (Cr): Z=24

Manganese (Mn): Z=25

Cobalt (Co): Z=27

Since 27>26, Cobalt has an atomic number greater than that of Iron.

Practice this question

Try it yourself before checking the explanation above.

Atomic number of which of the following elements is greater than that of Iron?
A
Manganese
B
Cobalt
C
Calcium
D
Chromium

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ChemistryPeriodic TableAtomic Number

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