Matter and Periodic Table

What is the symbol for Potassium?

• P

• Po

• K

• Na

In chemistry, elements are represented with letters called?

• Numbers

• Names

• Symbols

What part of matter does a Triple Beam Balance measure?

• Mass

• Volume

• Gas

• Liquid

The modern periodic table is organized according to ______.

• atomic number and similar properties

• atomic mass and similar nucleus configuration

• atomic radius and size of isotopes

• atomic mass and atomic number 

What is this atom's atomic number?

• 2

• 1

• 4

• 3

Tags

NGSS.MS-PS1-1

For any given element which of the following never changes?

• The ratio of neutrons to electrons in an atom.

• The number of protons in an atom.

• The charge on the atom.

• The atomic mass of an atom.

Tags

NGSS.HS-PS1-7

What does the atomic number of an atom represent?

• The number of energy levels in an atom of that element

• The number of protons in an atom of that element

• The quantity of protons and neutrons in the nucleus of an atom of that element

• The overall mass of a normal atom of that element

Which statement about the relative masses of subatomic particles is true?

• Protons, neutrons, and electrons all have about the same mass

• Neutrons have virtually no mass at all.

• Electrons have a lot more mass than either a proton or neutron.

• Electrons have a lot less mass than protons or neutrons.

Where is most of the mass in an atom found? 

• Electron shells

• Orbitals

• Nucleus

• Outermost edge

What do elements in the same family/group have in common?

• The size of electrons shells/energy levels

• The number of positively charged protons

• The size of the nucleus

• The number of valence electrons