What is the atomic number of Palladium

• atomic number is 107

• atmoic number is 106

• atomic number is 46

• 5 protons. 6 neutrons

Tags

NGSS.HS-PS1-1

What is the atomic mass of Copper

• atomic mass is 20

• atomic mass is 63

• atomic mass is 64

• atomic mass is 15

Elements in the same _______ on the periodic table have the same number of valence electrons

• rows

• periods

• groups

What is the purppse of the zigzag line on the periodic table?

• To separate metals from nonmetals

• To break up the different families or groups on the periodic table

• To make the periodic table more attractive of protons

The tendency of a substance to catch fire and burn

• Reactivity

• Flammable

• Combustibility

• Sparking

Subatomic particle that has a negative charge

• Proton

• Electron

• Neutron

• Nucleus

Change of state where a liquid becomes a solid, heat is removed

• Melting

• Freezing

• Condensation

• Sublimation

Tags

NGSS.MS-PS1-4

Subatomic particle that has no charge and that is located in the nucleus of an atom

• Neutron

• Proton

• Electron

• Nucleus

An atom's central region, which is made up pf proton and neutron

• Neutron

• Neptune

• Nucleus

• Negative

• element
• compound
• mixture of elements
• mixture of compounds

Tags

NGSS.MS-PS1-1