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Chem4Kids Quiz: Elements


QUESTION 2:

INCORRECT
Take a look at the table. You need to notice how oxygen (O) is above and to the left of chlorine (Cl). That location shows that it is lighter and lower atomic number. Oxygen has a mass of about 16 amu and chlorine is about 35 amu. Generally, the atomic mass of elements increases as you move to the right and down the table. Elements such as gold (Au) and silver (Ag) are heavier than helium (He).

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- Chem4Kids: Atoms
- Chem4Kids: Elements
- Chem4Kids: Periodic Table
- Biology4Kids: Digestive System
- Geography4Kids: Carbon Cycle
- Geography4Kids: Nitrogen Cycle
  
- General Chemistry
- Matter Overview
- States of Matter
> Elements Overview

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