Chapter 2, Problem 1RA

Which of these statements about atoms is true?

$\begin{array}{l}\text{a}\text{. They have more protons than electrons}\text{.}\\ \text{b}\text{. They have more electorns than protons}\text{.}\\ \text{c}\text{. They are electrically neutral}\text{.}\\ \text{d}\text{. They have as many neutrons as they have electrons}\text{.}\end{array}$