Periodic Table and Atomic Structure Review

Atoms of elements in the same group of the periodic table share the same

• number of energy levels

• number of valence electrons

• atomic numbers

• atomic masses

Which particles determine the atomic number of an element?

• Protons only

• Neutrons and protons

• Neutrons only

• Protons and electrons

What is an atom’s nucleus made of?

• protons and electrons

• protons only

• protons and neutrons

• neutrons only

How many electrons will a neutral atom of carbon have if its nucleus has 6 protons and 8 neutrons?

• 2

• 6

• 8

• 14

Match the following atomic numbers with their element name

• Lithium

• Atomic Number 78

• Hydrogen

• Atomic Number 1

• Tellurium

• Atomic Number 3

• Arsenic

• Atomic Number 33

• Platinum

• Atomic Number 52

The number 16 for the atomic element sulfur is the

• ionic number

• isotope

• atomic mass

• atomic number

Tags

NGSS.MS-PS1-1

Which element has an atomic number of 82?​ (a)  

• lead

• chlorine

• argon

• xenon

Aria and Luna are exploring the periodic table. They notice a number at the top of each square. What is this number called?

• atomic number

• atomic mass

• Chemical Symbol

• Element Name

Tags

NGSS.MS-PS1-1

What determines the order of elements on today's periodic table?

• increasing atomic mass

• decreasing atomic mass

• increasing atomic number

• decreasing atomic number

What is the atomic number for Arsenic?

• 74.922

• 75

• 33

• 42

Tags

NGSS.MS-PS1-1