(Chem) W10 Unit 3 Exam Periodic Table

The Atomic number is determined by only one thing → the number of ____ in the atom’s nucleus.

• protons
• neutrons
• electrons
• isotopes

Developed a system of symbols for naming the elements, using 1–2 letters of each element’s Latin name.

• Jacob Berzelius
• Joshua Bohr
• Ernest Thomson
• Albert Dalton

The identity of the element is always determined by its proton _____.

• number
• charge
• distribution
• arrangement

The first letter of an element symbol is _____ capitalized

• always
• seldom
• never
• usually

Each shell or ______ level has a specific number of electrons it can “hold.”

• energy
• top
• bottom
• neutron

Tags

NGSS.MS-PS1-1

_____ derives its name from Thor, the Norse god of thunder.

• Thorium
• Uranium
• Titanium
• Nickel

Atomic ____ is determined by adding the number of protons plus the number of neutrons in any atom.

• Mass
• Nunber
• Isotope number
• Ion charge

What is the number of electrons on each energy level known as?

• Electron Configuration
• Atomic Number
• Atomic Mass Number
• Electron Association

Most periodic tables do not list the number of what?

• neutrons
• protons
• electrons
• element names

To find the number of neutrons we subtract the number of ____ from the atomic mass.

• protons
• isotopes
• ions
• particles