Which outcome arises when thorium contaminants accumulate in tungsten filaments?

💡 Explanation

The electron work function decreases because *alpha decay* of thorium creates surface defects that lower the ionization energy of tungsten. Therefore, electron emission increases, rather than altering conductivity, strength, or suppressing electron flow.

• Which outcome occurs with ammonia synthesis at sub zero when catalysts pores constrict?
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• Which outcome accompanies hydrogen evolution at a cathode?
• Which mechanism primarily leads to a lower mass for deuterium compared to the sum of its constituent protons and neutrons?
• Which outcome arises when a high-power laser rapidly heats a metal?