Question

write the chemical symbols for three different atomic cations that all have 11 protons.

Explanation:

Step1: Identify the element

An element with 11 protons is sodium, symbol Na.

Step2: Form cations

Cations are formed by losing electrons. Sodium can form cations with different positive - charges by losing different numbers of electrons.

Step3: Write chemical symbols

$Na^+$, $Na^{2+}$, $Na^{3+}$ are three different atomic cations of sodium.

Answer:

$Na^+$, $Na^{2+}$, $Na^{3+}$