Atoms and Molecules practice

How many electrons are in the outermost shell of Argon?

• 2

• 4

• 5

• 8

Tags

NGSS.MS-PS1-1

Which statement about atoms is true?

• Atoms combine to make all the substances on Earth.

• Atoms combine to make all the substances on Earth.

• Atoms are made up of smaller particles called molecules.

• Atoms come in different sizes, but most are visible using a simple hand lens.

Tags

NGSS.MS-PS1-1

Atoms can be bonded together by:

• Being placed next to one another

• Sharing electrons with one another

• Sharing protons with one another

• Losing electrons as heat is applied

Fill in the blank with the charge for the given particle.

Electron is _______.

How is a chemical element different from a chemical compound?

• A chemical element consists of one type of atom while a chemical compound consists of two or more different types of atoms bonded together.

• There is no difference between a chemical element and a chemical compound.

• A chemical element consists of one type of atom while a chemical compound consists of two or more of the same type of element bonded together.

• A chemical element consists of two different types of atoms while a chemical compound consists of two or more different types of atoms bonded together.

Q. 

When more than one atom is attached it is called a ______.

Tags

NGSS.MS-PS1-1

Elements can be made of a single _____

• subatomic particle

• atom

• molecule

• particle

Look at the information on the element box to answer the following questions.

Number of electrons:____

Tags

NGSS.MS-PS1-1

Look at the information on the element box to answer the following questions.

Number of neutrons:____

Tags

NGSS.MS-PS1-1

Look at the information on the element box to answer the following questions.

Number of Protons:___

Tags

NGSS.MS-PS1-1