Mystery Elements Practice

What is the name of the element with 7 valence electrons in period 4?

• Bromine

• Thulium

• Livermorium

• Osmium

What is the name of the element with 3 valence electrons that qualifies as metalloid?

• Boron

• Yttrium

• Aluminum

• Lithium

What is the name of the element with the sum of protons and neutrons that total 52?

• Chromium

• Copernicium

• Cadmium

• Copper

What is the name of the element in period 4 that is the least reactive element in this period and kind of sounds like it belongs in a Superman comic?

• Krypton

• Radon

• Carbon

• Silicon

What is the name of the element that is a highly reactive nonmetal that has only one letter as its element symbol with a mass over 100?

• Iodine

• Potassium

• Hydrogen

• Oxygen

What is the element symbol for the element that has similar properties to Xe but is located 3 periods higher?

• Neon

• Fluorine

• Antimony

• Lutetium

Find an element in group 10. Would you classify this as a good conductor or a poor conductor?

• Good

• Poor

What is the name of the element with the fewest number of protons?

• Hydrogen

• Oganesson

• Helium

• Francium

What is the name of the radioactive element with 3 less protons than Americium?

• Uranium

• Californium

• Europium

• Cobalt

What is the name of the element that has the greatest number of protons that is classified as a highly reactive alkali metal?

• Francium

• Hydrogen

• Tennessine

• Oganesson