which of the following models also represents a lithium atom?
which of the following models also represents a lithium atom?
Answer
Explanation:
Step1: Recall lithium - atom properties
A lithium atom has atomic number 3. This means it has 3 protons (positively - charged particles, yellow + in the models), 3 electrons (negatively - charged particles, blue dots in the models), and usually 4 neutrons (neutral particles, grey spheres in the models).
Step2: Analyze each model
Check the number of protons, neutrons, and electrons in each model. The correct model should have 3 protons, 3 electrons, and a reasonable number of neutrons (usually 4 for a common isotope of lithium).
Answer:
The model with 3 yellow + (protons), 3 blue dots (electrons), and 4 grey spheres (neutrons) represents a lithium atom. Without specific labels for each model, it's not possible to say which of the three given models it is exactly, but the correct one will match the above - described particle counts.