Multiple Choice
Which statement is false?
A) A molecule is made of at least two atoms.
B) Compounds are made of elements.
C) Two atoms of oxygen make a molecule of oxygen.
D) Proportions of elements in compounds vary according to their source in nature.
E) Elements are found in compounds and molecules.
Correct Answer:

Verified
Correct Answer:
Verified
Q6: MATCHING<br>Classification.The various energy levels in an atom
Q7: The atomic number refers to the<br>A) mass
Q9: In a chemical equation, the chemicals to
Q10: Toxic elements such as mercury are found
Q12: An atom with more protons than electrons
Q13: MATCHING<br>Classification.The various energy levels in an atom
Q14: Which of the following is NOT accurate
Q27: Radioactive isotopes have _.<br>A) excess electrons<br>B) excess
Q37: Blood pH is kept near a value
Q41: Tracers are elements that _.<br>A) are used