Ques: Q: Free atoms are spherical in shape, so the relative sizes of the elements can be compared by looking at each atom's atomic what? Choices: - weight - axis - angles - radius A:
Ans: radius

Ques: Q: An estimated 100 trillion of these live in the gut of an average person? Choices: - viruses - pathogens - algae - bacteria A:
Ans: bacteria

Ques: Q: An electric transformer connects two circuits with an iron core that becomes what? Choices: - inductive - radioactive - actuator - electromagnet A:
Ans: electromagnet

Ques: Q: What is the term for the use of two or more lewis structures to represent the covalent bonding in a molecule? Choices: - reaction - harmony - frequency - resonance A:
Ans:
resonance