Question

\"Moving down group 2A (Alkaline Earth Metals), which element has the largest first ionization energy?\" Is the answer to this: Radium? . . Also, could you explain what a \"first\" ionization energy is?. . Thanks!

Answer 1

Radium has the largest first ionization energy in group 2A (Alkaline Earth Metals). The first ionization energy is the energy required to remove one electron from a neutral atom in its ground state.

Step-by-step explanation:

In the group 2A elements, ionization energies generally decrease as you move down the group. This means that the element at the bottom of the group will have the lowest first ionization energy. Therefore, Radium has the largest first ionization energy out of the alkaline earth metals.

The first ionization energy is the energy required to remove one electron from a neutral atom in its ground state. It measures how strongly an atom holds onto its electrons. Generally, ionization energy tends to decrease as you move down a group in the periodic table because the outermost electrons are farther from the nucleus and experience less attraction.

Answer 2

Ionization energy is the energy required to remove the outermost electron from one mole of gaseous atom to produce 1 mole of gaseous in to produce a charge of 1. The greater the ionization energy, the greater is the chance f the electron to be removed from the nucleus. In this casse, Radium has the largest ionization energy.