Question

Based on your understanding of the periodic table, which element has the greatest number of electrons

A. Uranium
B. Sodium
C. Selenium
D. Polonium

Answer 1

A. Uranium

Step-by-step explanation:

Uranium - 92e-

Sodium - 11e-

Selenium - 34e-

Polonium - 84e-

Answer 2

Answer : The uranium element has the greatest number of electrons.

Step-by-step explanation:

Atomic number : It is defined as the number of protons or number of electrons.

Atomic number = Number of protons = Number of electrons

Mass number : It is defined as the sum of number of protons and number of neutrons.

Number of neutrons = Mass number - Number of protons

The given element is, Uranium

Atomic number of Uranium = 92

Atomic number = Number of protons = Number of electrons

So, Atomic number = Number of electrons = 92

The given element is, Sodium

Atomic number of Sodium = 11

Atomic number = Number of protons = Number of electrons

So, Atomic number = Number of electrons = 11

The given element is, Selenium

Atomic number of Selenium = 34

Atomic number = Number of protons = Number of electrons

So, Atomic number = Number of electrons = 34

The given element is, Polonium

Atomic number of Polonium = 84

Atomic number = Number of protons = Number of electrons

So, Atomic number = Number of electrons = 84

Hence, from this we conclude that uranium element has the greatest number of electrons.