Advanced Science Changes in Matter

The Modern Periodic Table of Elements is arranged by

• atomic mass
• atomic number
• valence electrons
• number of isotopes

What does the atomic mass tell you? 

• Basically,the number of electrons and protons
• The number of neutrons
• Basically, the number of protons and neutrons
• The number of protons.

These are found on the Periodic Table.

• Compounds
• Elements
• Mixtures

What's a valence electron?

• electrons in the second energy level
• electrons in the outermost energy level
• the atomic number
• electrons in the first level

Tags

NGSS.MS-PS1-1

one or two letters that represent the name of an element

• element name

• element symbol

• atomic number

• atomic mass

Where are the nonmetals located on the Periodic Table?

• On the right

• On the left

• On the stairstep

Metals appear to the _______ of the dark ziz-zag line on the periodic table.

• A. right

• B. middle

• C. left

You split logs into pieces with an axe before burning them.

• Physical change

• Chemical change

Opening and shaking a hand warmer packet makes it heat up.

• Physical change

• Chemical change

Tags

NGSS.MS-PS1-4

You notice bubbles and steam as water heats up and boils.

• Physical change

• Chemical change

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5