Question

find the element:
protons: 7
neutrons: 8
electrons: 10

Explanation:

Step1: Identify the element based on protons

The number of protons determines the element. The element with 7 protons is nitrogen (N).

Step2: Analyze the charge based on electrons

A neutral atom has equal number of protons and electrons. Here, protons = 7 and electrons = 10. So, the ion has a charge of \(7 - 10=- 3\).

Step3: Write the ion symbol

The ion is \(N^{3 -}\).

Answer:

\(N^{3 -}\)