Which of the following statements is true about effective nuclear charge?

Question

Which of the following statements is true about effective nuclear charge? (A) Z text eff decreases from top to bottom (B) Z text eff increases from top to bottom (C) Z text eff increases as we move from left to right in periodic table (D) Z text eff -Z × σ (here σ is screening constant)

Tardigrade Admin · Accepted Answer

The periodic table tendency for effective nuclear charge: Increase across a period (due to increasing nuclear charge with no accompanying increase in shielding effect). Decrease down a group (although nuclear charge increases down a group, shielding effect more than counters its effect).

Q. Which of the following statements is true about effective nuclear charge?

$Z_{eff}$ decreases from top to bottom

$Z_{eff}$ increases from top to bottom

$Z_{eff}$ increases as we move from left to right in periodic table

$Z_{eff} - Z \times σ$ (here $σ$ is screening constant)

The periodic table tendency for effective nuclear charge: Increase across a period (due to increasing nuclear charge with no accompanying increase in shielding effect). Decrease down a group (although nuclear charge increases down a group, shielding effect more than counters its effect).

Q. Which of the following statements is true about effective nuclear charge?

Zeff ​ decreases from top to bottom

Zeff ​ increases from top to bottom

Zeff ​ increases as we move from left to right in periodic table

Zeff ​−Z×σ (here σ is screening constant)

The periodic table tendency for effective nuclear charge: Increase across a period (due to increasing nuclear charge with no accompanying increase in shielding effect). Decrease down a group (although nuclear charge increases down a group, shielding effect more than counters its effect).

$Z_{eff}$ decreases from top to bottom

$Z_{eff}$ increases from top to bottom

$Z_{eff}$ increases as we move from left to right in periodic table

$Z_{eff} - Z \times σ$ (here $σ$ is screening constant)