Question

explain what is represented by each symbol in the notation \\( _z^a x \\)
match the words in the left - hand column to the appropriate blanks in the sentences on the right. make certain each sentence is completed before submitting your answer.

atomic number	1. a : blank
chemical symbol	2. x : blank
mass number	3. z : blank

Explanation:

In the atomic notation \(\ce{_Z^A X}\), \(A\) represents the mass number (sum of protons and neutrons), \(X\) is the chemical symbol of the element, and \(Z\) is the atomic number (number of protons). So we match: 1. \(A\) - mass number; 2. \(X\) - chemical symbol; 3. \(Z\) - atomic number.

Answer:

1. \(A\) - mass number
2. \(X\) - chemical symbol
3. \(Z\) - atomic number