pre quiz

What does this picture portray?

• atom of an element

• elemental substance

• molecule of a compound

• compound

Tags

NGSS.MS-PS1-1

What does this picture portray?

• atom of an element

• element

• molecule of an element

• compound

• molecule of a compound

Tags

NGSS.MS-PS1-1

What is sugar? (C₆H₁₂O₆)

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1

How many protons are in an atom of carbon?

• 12

• 6

• 14

• 8

• it depends on the isotope of carbon

Tags

NGSS.MS-PS1-1

How many atoms of H are there in  $H_2O$  ?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

What is the Atomic Number of an element?

• Number of neutrons

• Number of protons

• Number of protons + neutrons

• Number of electrons + neutrons

This diagram represents...

• An element

• A molecule

• A compound

• A mixture of elements and compounds

Tags

NGSS.MS-PS1-1

The nucleus contains _____

• only protons
• protons and neutrons
• protons and electrons
• electrons and neutrons

Tags

NGSS.MS-PS1-1

Which statement correctly describes the location and charge of the neutrons in an atom?

• The neutrons are inside the nucleus and have a positive charge.

• The neutrons are outside the nucleus and have a neutral charge.

• The neutrons are outside the nucleus and have a negative charge.

• The neutrons are inside the nucleus and have a neutral charge.

What type of particles are found in the cloud surrounding the atom's nucleus?

• Neutral particles and positively charge particles

• Positive charge particles only

• Negatively charge particles and positively charge particles

• Negatively charge particles only