CHEMICAL COMPOUNDS

Which of the following substances is NOT an element?

• Carbon

• Copper

• Hyrdogen

• Copper (II) sulfate

What do you call the pure substance made up of only one (1) atom?

• Element

• Compound

• Molecule

• Matter

Which statement does NOT describe an element?

• It is made up of only one kind of atom.

• It is written in chemical symbol.

• It cannot be separated into smaller pieces

• It is made up of two or more kinds of atoms.

Which statement describes a compound?

• It is made up of only one kind of atom.

• It is written in chemical symbol.

• It cannot be separated into smaller pieces

• It is made up of two or more kinds of atoms.

Which of the following is a compound?

• Carbon dioxide

• Oxygen

• Sulfur

• Neon

Which of the following is NOT an element?

• He

• CuSO₄

• Fe

• Cu

Which of the following is a compound?

• H

• Lu

• Po

• CO

Which of the following element is a NON-METAL?

• Boron (B)

• Sodium (Na)

• Calcium (Ca)

• Oxygen (O)

Which of the following is a metallic element?

• Boron (B)

• Calcium (Ca)

• Radon (Rn)

• Fluorine (F)

Which of the following is a semi-metal element?

• Boron (B)

• Calcium (Ca)

• Radon (Rn)

• Fluorine (F)