Periodic Table of Elements

What does the 1.00794 stand for?

• Hydrogen
• atomic number
• atomic mass
• atomic explosion

Tags

NGSS.HS-PS1-1

the positively charged subatomic particle contained in the nucleus of an atom

• proton

• neutron

• electron

• matter

Tags

NGSS.MS-PS1-1

a negatively charged subatomic particle that orbits the nucleus of an atom

• proton

• neutron

• electron

• matter

Tags

NGSS.MS-PS1-1

What charge do neutrons have?

• No charge

• Positive Charge

• Negative Charge

• Both positive an negative charges

How many neutrons are in a Gold atom?

• 79
• 196
• 118
• 275

Tags

NGSS.MS-PS1-1

Rows on the periodic table are called ___________.

• Periods

• Sentences

• Fences

What do the orange and yellow spheres represent in this model of an atomic nucleus?

• Gluons and leptons.

• Protons and neutrons.

• Positrons and electrons.

• Atoms and molecules.

Tags

NGSS.MS-PS1-1

Carbon has an atomic number of 6. What can you conclude about carbon from this fact?

• It has 6 protons.

• It has 6 neutrons.

• It's in group 6.

• It's in period 6.

Tags

NGSS.MS-PS1-1

The vertical (up and down) columns in the Periodic Table are called (a)  

• groups
• towers
• periods
• atomic numbers

What are valence electrons?

• Any of an atom's electrons

• Electrons located on the first energy level

• Electrons not attached to any atom

• Electrons in the outermost energy level

Tags

NGSS.MS-PS1-1