Chemistry Unit

Explore atoms and the periodic table! Fun worksheet on subatomic particles, elements, and matter.

Anything that has mass and takes up space is xxxx. mass matter solution product Which letter is the proton in the model? A B C Which letter is the neutron in the model? A B C Which letter is the electron in the model? A B C The atom is composed of subatomic particles xxxx, xxxx, and xxxx, that affect the properties of an atom. Protons, Electrons and Neutrons Atomic number, Atomic mass, and Atom's symbol Atomic number, Protons and Nucleus Atomic mass, Atomic number and Neutrons. This subatomic particle has a POSITIVE charge an is found within the nucleus. Protons Neutrons Electrons Family This subatomic particle has a negative charge and is found on the energy levels. Protons Neutrons Electrons Family This subatomic particle has no charge and is found within the nucleus. Protons Neutrons Electrons Family the nucleus is located in the xxxxof the atom. energy levels on the outside of the atom center none of these choices the periodic table is used to organize all of the xxxx. Periods Mixtures Compounds elements every periodic table will have a square for each element with the xxxx, xxxx, xxxx, and xxxx. protons, electron, and neutrons name, chemical symbol, atomic number and atomic mass name, numbers, zip code and year discovered scientist name, atomic mass, year discovered and periods The symbol "O" on the periodic table is the symbol forxxxx. organ ocean orbital oxygen The symbol "N" on the periodic table is the symbol for xxxx. Sulfur Nitrous gas Nitrogen sodium The symbol "Na" on the periodic table is the symbol for xxxx. Sulfur Nitrous gas Nitrogen sodium the atomic number of an element is equal to (the same as) the number of xxxx and the number of electrons. elements Neutrons protons groups the elements on the periodic table are arranged numerically by increasing xxxx. atomic number alphabet year location The atomic mass is an average sum of the number of xxxx and the number of xxxx in the nucleus of an atom. Protons and energy levels. electrons and energy levels Neutrons and electrons protons and neutrons a horizontal row on the periodic table is called xxxx. (----->) group family period section xxxxalso called groups are vertical Columns of elements on the periodic table. group family period section Elements in the same family have xxxx properties. different similar No Metalloids are shaded xxxx on this periodic table. Green Blue Metals are shaded xxxx on this periodic table. Green Blue nonmetals are shaded xxxx on this periodic table. Yellow Blue The majority of elements are xxxx. metals metalloids Nonmetals Physical Properties Choose the correct physical properties of metals and nonmetals by placing the "characteristics" in the correct category metals Luster conductor of heat malleable ductile have high density nonmetals Dull nonconductor of heat brittle nonmetals Hydrogen carbon metalloids Boron Silicon metals Iron Aluminum In chemistry, xxxxis a material made up of two or more different substances which are physically combined. an element a compound a mixture a substance formed from two or more elements chemically combined. an element a compound a mixture cannot be chemically broken down into simpler substances and are the primary source of matter. an element a compound a mixture heterogeneous and homogeneous mixtures Place the examples given in the category where it belongs; heterogeneous or homogeneous mixture. homogeneous Heterogeneous Place these unknowns from the diagram above pH test papers in order from most acidic to most alkaline. d paper, c paper, b paper, a paper. b paper, a paper, c paper, d paper. c paper, d paper, a paper, b paper. d paper, c paper, a paper, b paper. Litmus paper turns or remains BLUE when it is xxxx . an acid an alkaline neutral Litmus paper turns or remains RED when it is xxxx . an acid an alkaline neutral According to the law of conservation of mass....... (choose the statement below that best fit). the mass of the products in a chemical reaction doesn't have to equal the mass of the reactants. the mass of the products in a chemical reaction must equal the mass of the reactants. the properties of the products in a chemical reaction is different of the reactants properties. Mass is changed and properties are changed. Which chemical equation below falls within the Law of Conservation of Matter?(Identify the balanced equation) Al + 3 O2 → 4 Al2O3 2 Al + 3 O2 → 3 Al2O3 4 Al + 3 O2 → 2 Al2O3 3 Al + 3 O2 → Al2O3