QuestenaUn entraînement qui indique quoi revoir ensuite
RechercheCréer un test
Question 117

A monatomic ion has a two-plus charge. Which particle-count relationship must it have?

  1. Equal numbers of protons and electrons
  2. Two fewer protons than electrons
  3. Two fewer electrons than protonsBonne réponse
  4. Two fewer neutrons than protons

Explication

A two-plus charge means positive charge exceeds negative charge by two units, so the ion has two fewer electrons than protons. Giving it two extra electrons would instead produce a two-minus charge.

Continuer avec ce test

Commencer l’entraînement
Comprendre ce thème (≈5 min)Retour au test
Question 117: A monatomic ion has a two-plus charge. Which particle-count… · The Periodic Table and Elements · Questena