Question Info

This question is public and is used in 1 group and 211 tests or worksheets.

Type: Multiple-Choice
Category: Periodic Table and Elements
Level: Grade 7
Score: 1
Author: adamstein
Last Modified: 4 years ago

View all questions by adamstein.

Periodic Table and Elements Question

View this question.

Add this question to a group or test by clicking the appropriate button below.

Grade 7 Periodic Table and Elements

An atom of iron has 26 protons and 30 neutrons. The mass number of iron is                .
  1. 56
  2. 30
  3. 26
  4. 4
You need to have at least 5 reputation to vote a question down. Learn How To Earn Badges.