Chemistry

Group 1 - Answer Alkali metals. Group 2 - Answer Alkaline earth metals Groups 3-12 - Answer transition metals metalloids - Answer Found along the 'staircase'. Have properties of both metals and nonmetals nonmetals - Answer brittle , dull, poor conductors of heat and electricity Proton - Answer Positively charged particle in the nucleus of an atom Neutron - Answer A subatomic particle that is neutral and that is found in the nucleus of an atom Electron - Answer A tiny, negatively charg...

Isotopes - Answer Atoms of the same element vary in the numbers of neutrons they have in the nucleus. Have different masses because of the different numbers of neutrons. Crystals - Answer Formed when atoms ionize by transferring electrons from one atom to another. Ex: sodium chloride, calcium chloride, calcium oxide. Moleucles - Answer A cluster of atoms chemically bonded together. Ex: water, ammonia, methane, carbon dioxide, propane, and sulfur dioxide. Acid Rain - Answer Sulfur dioxide...

Chemical Reaction - Answer Process in which one or more substances, are changed into new substances Reactants - Answer in a chemical reaction , the substance that reacts products - Answer in a chemical reaction the new substance or substances form chemical equations - Answer short hand method used to describe chemical reactions using chemical formulas and other symbols. Coefficients - Answer number in a chemical equation that represents the number of units of each substance taking part in...

phase change - Answer a switch between a phase of matter caused by a change in temperature or pressure average kinetic energy - Answer measure of how quickly particles are moving, measured as temperature temperature - Answer measure of average kinetic energy pressure - Answer the force of pushing or squeezing measure in atmospheres (atm) or kiloPascals (kPa) endothermic - Answer reaction that absorbs heat, heat enters the reaction and will be found on the reactant side of a chemical equa...

Period - Answer Elements in the same ____ have same size atoms. Group - Answer Elements in the same ____ have the same number of valence electrons. Top - Answer The smallest elements are towards the ___ of the periodic table. Bottom - Answer Bigger elements are toward the ___ of the periodic table. Transition Metals - Answer The name of the middle section of the periodic table. Noble Gases - Answer Group 18 of the periodic table. All electrons in that group have the maximum number of elect...

Why is electronic structure important? - Answer All of chem is governed by transfer of electrons or the arrangement of electrons. How do you study electronic structure? - Answer Use interaction of light with matter to study the electronic structure. Light - Answer a "wave of energy" that consists of oscillating electric and magnetic fields. Frequency - Answer number of complete cycles pf electric fields that pass a given point per second. Wavelength - Answer distance between successive ...

Rutherford's "Nuclear Atom" - Answer Orbit- defined path around an object. The earth travels in an orbit around the sun. Rutherford believed electrons traveled in orbits around the atom's nucleus. "Quantum Mechanical" Atom - Answer Orbital- a region of space in which an electron can be found, with no specific path of travel. Orbitals comprise energy levels in atoms. What are the four types of orbitals? - Answer s, p, d, f "S" orbitals - Answer -there is one "s" orbital in each en...

H - Answer Hydrogen He - Answer Helium Li - Answer Lithium Be - Answer Beryllium B - Answer Boron C - Answer Carbon N - Answer Nitrogen O - Answer Oxygen F - Answer Fluorine Ne - Answer Neon Na - Answer Sodium Mg - Answer Magnesium Al - Answer Aluminum Si - Answer Silicon P - Answer Phosphorus S - Answer Sulfur...

Akali Metals - Answer Group 1A, excluding Hydrogen. Highly reactive, have one valance electrons and Not alone transiton metals - Answer groups 3-12 in the table akaline earth metals - Answer Metals with two valance electrons, not as reactive found as akali mIMAGE Metals with two valance electrons, not as reactive found as akali metals in Group 2 needed for our healthetals in Group 2 needed for our health Halogens (Group 17) - Answer non-metals and highly reactive (B, Si, Ge, As, Sb, Te) ...

physical change - Answer A change that alters the form or appearance of a material but does not make the material into another substance. chemical change - Answer a change in which one or more substance combine or breaks apart to form new substances Reactant - Answer A substance that enters into a chemical reaction products - Answer A substance formed as a result of a chemical reaction precipitate - Answer A solid that forms a solution during a chemical reaction exothermic reaction - Answ...