What you can know from the Periodic Table

Which is larger, an atom or an element?

• an atom

• an element

What does the 1.00794 stand for?

• Hydrogen
• atomic number
• atomic mass
• atomic explosion

Tags

NGSS.MS-PS1-1

The atomic number tells you what?

• number of electrons
• number of protons
• number of neutrons
• both electrons and protons in an atom.

In the modern periodic table elements are arranged by:

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

The order of elements in the periodic table is based on

• the number of protons in the nucleus.

• the electric charge of the nucleus.

• the number of neutrons in the nucleus.

• atomic mass.

From this element key of Nitrogen, determine the atomic mass of nitrogen

• 7

• 7.01

• 14.01

• 21.01

Tags

NGSS.MS-PS1-1

What is the chemical symbol for sodium?

• S

• So

• Na

• K

How many protons are in a nitrogen atom?

• 5

• 7

• 14

• 28

Tags

NGSS.MS-PS1-1

In an atom, which subatomic particles are always equal?

• protons and electrons

• protons and neutrons

• neutrons and electrons

• protons, neutrons, and electrons

Tags

NGSS.MS-PS1-5

Which of the following elements have atoms that are more massive than chlorine?

• lithium

• helium

• carbon

• argon