5 Written questions
5 Matching questions
- regions around the nucleus in which a given electron is likely to be found most of the time
- a Each element is composed of more or less identical (particles or building blocks)
- b are polymers of simple sugars linked together by dehydration synthesis. (storage products)
- c Orbitals
- d a positively charged ion
- e Nearly all known elements have two or more structural variations, which differ in the number of neutrons they contain.
5 Multiple choice questions
- is the total mass of protons, neutrons, and electrons in a atomic nucleus. The weight of all atoms of the same type.
- is the smallest unit resulting from the chemical bonding of two or more atoms.
- exists in solid, liquid, and gaseous states. Examples of each state are found in the human body.
- unique substances that cannot be broken down into simpler substances by ordinary chemical methods.
- Types of energy
5 True/False questions
Steroids → (glucose + fructose) a complex carbohydrate found in many plants and used as a sweetening agent
the key to chemical reactivity is ... → Octet rule (or rule of eight)
Indicates an atom's outermost energy level (or that portion of it) containing the electrons that are chemically reactive. → valence shell
Radioisotopes → organic compound containing carbon, hydrogen, and oxygen. A group of molecules that includes sugars and starches.
Matter → a positively charged ion