Quiz 6- Review Flashcards
Atomic mass
The average number of nucleons in the nuclei of the atoms of a particular element.
Atomic number
The number of protons in the nulei of the atoms
Element
A substance characterized by beibg composed of atoms all possessing the same number of protons in the nucleus.
Isotope
Ang variety of the atoms of an element, differing in the number of neutrons the atoms havf in their nuclei.
Mettaliod
A group of seven elements located in between the metals and the nonmetals in the Periodic Table of the Elements, possessing some of the properties of both.
Compound
Two or more elements chemically bonded together.
Heterogeneous mixture
A mixture in which the presence of at least two different substances is visible to the eye.
Homogeneous mixture
a solution
Ion
An atom that has gained or lost one or more electrons, and has thus aquired a net electric charge.
Mixture
A combination of substances that occurs without any chemical reaction.
Solute
A solid, liquid, or gas that is dissolved into a fluid.
Solution
A homogeneous mixture formed when one substance dissolves into another substance.
Solvent
A fluid into which a solute is dissolved to form a solution.
Example of a homogeneous mixture
An example of a homogeneous mixture is a milkshake.
What is an example of a heterogeneous mixture.
A mixture of sand and water.
What is an example of an element
Hydrogen
What is an example of a compound
Water
Substances
Tree
Pure substances, mixtures
Pure substances
Tree
Elements, compounds
Mixtures
Tree
Homogeneous mixtures, heterogeneous mixtures.
The proccess of disolving crystalline substances.
Crystalline substances dissolve in polar molecules. Water molecules are polar so crystalline substances dissolve in water however oil molecules are not polar so crystalline substances dont dissolves in oil.
What are three ways we know truth?
Direct observation, valid logic, revelation from God.
