Question

this model represents a lithium ion.
image of lithium ion model with legend: + proton, ● neutron, ◉ electron
complete the sentences.
the lithium ion is dropdown charged. the ion would attract a dropdown charge and repel a dropdown charged ion. dropdown options: positively, negatively

Explanation:

Step 1: Count protons and electrons

Protons (yellow, +) in the nucleus: Let's count. The yellow circles (protons) are 3. Electrons (blue, -) in the electron cloud: count the blue circles, there are 2.

Step 2: Determine charge of lithium ion

Charge of an ion is protons - electrons. So 3 protons - 2 electrons = +1. So the lithium ion has a positive charge (since protons > electrons, positive charge).

Step 3: Determine attraction and repulsion

Opposite charges attract, like charges repel. So a positively charged ion (lithium ion) would attract a negatively charged particle/ion, and repel a positively charged ion.

Answer:

The lithium ion is \(\boldsymbol{\text{positively}}\) charged. The ion would attract a \(\boldsymbol{\text{negatively}}\) charged particle/ion and repel a \(\boldsymbol{\text{positively}}\) charged ion.

(For the dropdowns: First dropdown: positively; Second dropdown: negatively; Third dropdown: positively)