Science Midterm

The Building blocked of matter (make up solids, liquids, and gasses)

• Atoms

• Isotopes

• Electrons

• Protons

Tags

NGSS.MS-PS1-1

Positive Charge, has mass, nucleus, identifies the atom

Neutral Charge, mass, stabilizes the nucleus

Negative Charge, no mass, found in electron cloud, gives the atoms its charge

Tags

NGSS.MS-PS2-3

A variation of an Element

• Atom

• Nucleus

• Isotope

What Changes in an Isotope?

• The Name

• The Number of Neutrons

• The Number of Protons

• Mass

Ca-42 (What is the 42 Stand For)

Where do the Electrons go?

Tags

NGSS.MS-PS1-1

How many Valence Electrons are allowed in the 1st Energy Level

How many valence electrons are allowed in the 2nd Energy Level?