Question

this is how zirconium appears in the periodic table. rounded to the nearest whole number, how many electrons are in an atom of zirconium? 40 zr zirconium 91.22 40 51 91 131

Explanation:

Step1: Recall atomic number property

The atomic number of an element is equal to the number of protons in an atom. In a neutral atom, the number of electrons is equal to the number of protons.

Step2: Identify atomic number

The atomic number of zirconium (Zr) is 40 (the number above the symbol in the periodic - table box).

Step3: Determine electron number

Since the number of electrons in a neutral atom of zirconium is equal to its atomic number, a neutral atom of zirconium has 40 electrons.

Answer:

40