5 Written questions
5 Matching questions
- neutrons (n⁰)
- lesser elements
- protons (p⁺)
- electrons (e⁻)
- a Uncharged (neutral) particles located within the nucleus of an atom.
- b Negatively charged particles located in a cloud, moving about the nucleus of an atom.
- c The science of the structure and interactions of matter.
- d Calcium, Phosphorous, Potassium, Sulfur, Sodium, Chlorine, Magnesium, and Iron; make up about 3.6% of the body's mass.
- e Positively charged particles located within the nucleus of an atom.
5 Multiple choice questions
- 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).
- The time required for half of the radioactive atoms in a sample of an isotope to decay into a more stable form.
- Two or more atoms sharing electrons.
- The sum of an atom's protons and neutrons.
- Carbon, Hydrogen, Oxygen, and Nitrogen; they alone make up about 96% of the body's mass.
5 True/False questions
atoms → An atom that has a positive or negative charge because it has unequal numbers of protons and electrons.
dalton (atomic mass unit) → The dozens of particles that compose atoms, namely protons, neutrons, and electrons.
molecular formula → Two or more atoms sharing electrons.
nucleus → The dense central core of an atom where protons and neutrons are located.
mass → The amount of matter in any object; never changes.