5 Written questions
5 Matching questions
- dalton (atomic mass unit)
- major elements
- chemical symbol
- a One or two letters of an element's name in English, Latin, or another language (ex. H for Hydrogen, Ne for Neon, or K for Potassium).
- b An atom that has a positive or negative charge because it has unequal numbers of protons and electrons.
- c The standardized unit of measurement for the mass of atoms and their subatomic particles.
- d A substance that contains atoms of two or more different elements.
- e Carbon, Hydrogen, Oxygen, and Nitrogen; they alone make up about 96% of the body's mass.
5 Multiple choice questions
- Indicates the elements and the number of atoms of each element that make up a molecule.
- Uncharged (neutral) particles located within the nucleus of an atom.
- The elements that make up the last .4% of the mass of the body.
- The process of giving up or gaining electrons.
- The four major elements in the human body.
5 True/False questions
isotopes → Atoms of an element that have different numbers of neutrons and therefore different mass numbers; most of them are stable and do not change over time.
atoms → The smallest units of matter that retain the properties and characteristics of the elements.
molecule → Two or more atoms sharing electrons.
electron shells → Negatively charged particles located in a cloud, moving about the nucleus of an atom.
radioactive isotopes (radioisotopes) → The standardized unit of measurement for the mass of atoms and their subatomic particles.