Understanding the Periodic Table 2024

What is the outermost energy level of an atom called?

• Core shell

• Valence shell

• Electron cloud

• Nucleus

• Valence Electron

How many valence electrons do helium atoms have?

• 2

• 8

• 1

• 0

• 3

Which group of metals is known for being the most reactive?

• Transition Metals

• Alkaline-Earth Metals

• Alkali Metals

• Noble Gases

• Hard Metals

What common compound is formed from Alkali metals and is used to season food?

• Magnesium Oxide

• Calcium Carbonate

• Potassium Chloride

• Sodium Chloride

• Sea Salt

Which elements are the only ones known to produce a magnetic field?

• Helium and Neon

• Silver and Gold

• Sodium and Potassium

• Iron, Cobalt, and Nickel

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is the most common element from Group 13?

• Nitrogen

• Oxygen

• Aluminum

• Carbon

• Argon

Which gas makes up about 78% of the air you breathe?

• Argon

• Carbon Dioxide

• Oxygen

• Nitrogen

What are the very reactive nonmetals in Group 17 called?

• Transition Metals

• Noble Gases

• Halogens

• Alkali Metals

• Neon

Which element is used in light bulbs to prevent the filament from burning out?

• Xenon

• Krypton

• Neon

• Argon

• Natural Gas

Who created the framework that became the modern periodic table?

• Albert Einstein

• Dmitri Mendeleev

• Isaac Newton

• Marie Curie

• Bessie Smith