CSET-Minerals 2023 Updated with Graded Answers

CSET-Minerals element ANS- a class of matter that contains only one type of atom; cannot be broken down, chemically or physically into a simpler substance with the same properties Atom ANS- Protons and neutrons are found in nucleus, while electrons move about the central core Isotopes ANS- Atoms of the same element that have the same number of protons but different numbers of neutrons Compounds ANS- A substance that consists of two or more elements. Form as a result of changes in the arrangement of electrons in the outermost shells of the bonded atoms ionic covalent metallic ANS- ____ bonds that form when electrons are transferred. ____ bonds involve the sharing of electrons. ____ bonds exist when electrons are shared by metallic ions minerals ANS- 1. naturally occurring 2. solid substance 3. orderly crystalline structure 4. definite chemical composition 5. generally considered inorganic mineral formation ANS- 1. crystallization from magma 2. precipitation 3. changes in pressure ad temperature 4. formation from hydrothermal solutions