Chemistry Scavenger Hunt
... 2. There are three main phases of matter: _____________, ____________, and _____________. There is also a fourth phase, ______________, but it exists at very high temperatures. Science Is Fun Go to the “ChemTime Clock” and answer the questions below. http://www.scifun.org/ChemTime/ChemTime.html 1. A ...
... 2. There are three main phases of matter: _____________, ____________, and _____________. There is also a fourth phase, ______________, but it exists at very high temperatures. Science Is Fun Go to the “ChemTime Clock” and answer the questions below. http://www.scifun.org/ChemTime/ChemTime.html 1. A ...
Ch 3 notes ppt
... * atoms are composed of protons, neutrons and electrons * Recently, scientists discovered these particles contain particles (i.e. quarks, gluons) * A nucleus is a positively charged central core containing protons and neutrons * An individual proton has a charge that is equal to the charge of an ele ...
... * atoms are composed of protons, neutrons and electrons * Recently, scientists discovered these particles contain particles (i.e. quarks, gluons) * A nucleus is a positively charged central core containing protons and neutrons * An individual proton has a charge that is equal to the charge of an ele ...
Chemical Reactions
... (BrINClHOF) For example, Oxygen is O2 as an element. In a compound, it can’t be a diatomic element because it’s not an element anymore, it’s a compound! ...
... (BrINClHOF) For example, Oxygen is O2 as an element. In a compound, it can’t be a diatomic element because it’s not an element anymore, it’s a compound! ...
What are the parts of an atom?
... •Scientists now know that atoms are made of even smaller particles, but the atom is the smallest unit that has the ______________________________properties of an element. ...
... •Scientists now know that atoms are made of even smaller particles, but the atom is the smallest unit that has the ______________________________properties of an element. ...
Chemical reactions
... equations can be used to concisely represent elements, compounds, and what happens in a chemical reaction. –3 types of formulas ...
... equations can be used to concisely represent elements, compounds, and what happens in a chemical reaction. –3 types of formulas ...
Atomic Structure and Periodicity
... b. electron correlation problem-since paths of electrons cannot be known exactly, repulsions cannot be calculated exactly- must make approximations c. shielding - inner electrons shield outer electrons from nuclear charge (held less tightly) d. orbitals in polyelectronic atoms are not degenerate (s ...
... b. electron correlation problem-since paths of electrons cannot be known exactly, repulsions cannot be calculated exactly- must make approximations c. shielding - inner electrons shield outer electrons from nuclear charge (held less tightly) d. orbitals in polyelectronic atoms are not degenerate (s ...
Atomic Models & Scientists
... combine. Each compound has a specific number and kinds of atom. 4) Chemical reactions are rearrangement of atoms. Atoms are not created or destroyed. ...
... combine. Each compound has a specific number and kinds of atom. 4) Chemical reactions are rearrangement of atoms. Atoms are not created or destroyed. ...
Chapter 2 - Ector County ISD.
... combine. Each compound has a specific number and kinds of atom. 4) Chemical reactions are rearrangement of atoms. Atoms are not created or destroyed. ...
... combine. Each compound has a specific number and kinds of atom. 4) Chemical reactions are rearrangement of atoms. Atoms are not created or destroyed. ...
Unit 2 – Atomic Theory - H
... Element Symbol with mass number and atomic number Can also be the element name dash mass number Mass Number ...
... Element Symbol with mass number and atomic number Can also be the element name dash mass number Mass Number ...
electrons
... law of definite proportions: every compound has a fixed proportion e.g., water…………………….. 8 g O : 1 g H ...
... law of definite proportions: every compound has a fixed proportion e.g., water…………………….. 8 g O : 1 g H ...
ATOM
... • When TWO PROTONS are EXTREMELY CLOSE to each other, there is a STRONG ATTRACTION between them. • A similar attraction exists when NEUTRONS are very close to each other or when PROTONS AND NEUTRONS are very close together. • The SHORT-RANGE proton-neutron, proton-proton, and neutron-neutron FORCES ...
... • When TWO PROTONS are EXTREMELY CLOSE to each other, there is a STRONG ATTRACTION between them. • A similar attraction exists when NEUTRONS are very close to each other or when PROTONS AND NEUTRONS are very close together. • The SHORT-RANGE proton-neutron, proton-proton, and neutron-neutron FORCES ...
Chemistry EOC Review
... 131. What is the formula for molarity? (Formula provided on EOC). 132. Calculate the molarity of a solution that contains 85 g BaCl2 in 500 mL of water. 133. What is entropy? 134. What does it mean when entropy has a negative value? 135. Indicate if the following will have a positive or negative val ...
... 131. What is the formula for molarity? (Formula provided on EOC). 132. Calculate the molarity of a solution that contains 85 g BaCl2 in 500 mL of water. 133. What is entropy? 134. What does it mean when entropy has a negative value? 135. Indicate if the following will have a positive or negative val ...
Topic exploration pack
... 2(c) Normally, electrons happily orbit atomic nuclei, even if there are more or fewer of them than the proton number, so why do atoms sometimes spit out electrons at high energies? 2(d) What is a neutrino? This should be an opportunity for more advanced learners to look into the range of particles t ...
... 2(c) Normally, electrons happily orbit atomic nuclei, even if there are more or fewer of them than the proton number, so why do atoms sometimes spit out electrons at high energies? 2(d) What is a neutrino? This should be an opportunity for more advanced learners to look into the range of particles t ...
AP Chapter Five Outline
... the oxidizing agent. The substance that is oxidized causes the other species to be reduced and is called the reducing agent. ...
... the oxidizing agent. The substance that is oxidized causes the other species to be reduced and is called the reducing agent. ...
Answers - U of L Class Index
... Water can be softened. In other words, remove the Ca2+, Mg2+, etc. cations. One way to do this is to use an ion exchange column in which anionic beads are initially saturated with Na+ cations. When hard water passes through the ion exchange column, the Ca2+/Mg2+/etc. cations are more strongly attrac ...
... Water can be softened. In other words, remove the Ca2+, Mg2+, etc. cations. One way to do this is to use an ion exchange column in which anionic beads are initially saturated with Na+ cations. When hard water passes through the ion exchange column, the Ca2+/Mg2+/etc. cations are more strongly attrac ...
specimen
... 3 Chemists have developed models for bonding and structure. These models are used to explain different properties of metals and non-metals. (a) (i) Draw a labelled diagram to show the currently accepted model for metallic bonding. ...
... 3 Chemists have developed models for bonding and structure. These models are used to explain different properties of metals and non-metals. (a) (i) Draw a labelled diagram to show the currently accepted model for metallic bonding. ...
Ch-03 Notes ppt
... Law of Multiple Proportions When two different compounds are made of the same set of elements, different masses of one element combine with the same mass of the other in small, whole number ratios. ...
... Law of Multiple Proportions When two different compounds are made of the same set of elements, different masses of one element combine with the same mass of the other in small, whole number ratios. ...
Ch. 2 Chemistry
... • Are those in the outermost, or valence shell • Determines the chemical behavior of an atom The valence number of an atom is the number of unpaired electrons in its valence shell This valence number determines the number of bonds the atom can form. ...
... • Are those in the outermost, or valence shell • Determines the chemical behavior of an atom The valence number of an atom is the number of unpaired electrons in its valence shell This valence number determines the number of bonds the atom can form. ...
Name
... 1. Draw a picture of an atom. Label protons, neutrons, and electrons. Which part of an atom is positively charged and which part is negatively charged? ...
... 1. Draw a picture of an atom. Label protons, neutrons, and electrons. Which part of an atom is positively charged and which part is negatively charged? ...
Day 1 after school REVIEW
... would pass straight through since there would be no concentration of charge and mass large enough to deflect the relatively massive alpha particle d) actual results: most of the particles passed through unharmed (missed Au atoms) a few were deflected off to the side a very few were reflected backwar ...
... would pass straight through since there would be no concentration of charge and mass large enough to deflect the relatively massive alpha particle d) actual results: most of the particles passed through unharmed (missed Au atoms) a few were deflected off to the side a very few were reflected backwar ...
Atoms, Molecules and Ions
... (460 B.C. – 370 B.C.) was among the first to suggest the existence of atoms (from the Greek word “atomos”) – He believed that atoms were indivisible and indestructible – His ideas did agree with later scientific theory, but did not explain chemical behavior, and was not based on the scientific metho ...
... (460 B.C. – 370 B.C.) was among the first to suggest the existence of atoms (from the Greek word “atomos”) – He believed that atoms were indivisible and indestructible – His ideas did agree with later scientific theory, but did not explain chemical behavior, and was not based on the scientific metho ...
Atomic Models
... “Plum Pudding” model Electrons were just mixed into the positive material, the same way that chocolate chips are mixed into ice cream. The electrons mixed with the positive material, giving the atom a neutral charge. ...
... “Plum Pudding” model Electrons were just mixed into the positive material, the same way that chocolate chips are mixed into ice cream. The electrons mixed with the positive material, giving the atom a neutral charge. ...
Chapter 4
... Orbital- is a region of space around the nucleus where an electron is likely to be found. An electron cloud is a good approximation of how electrons behave in their orbitals The level in which an electron has the least energy—the lowest energy level—has only one orbital. Higher energy levels have mo ...
... Orbital- is a region of space around the nucleus where an electron is likely to be found. An electron cloud is a good approximation of how electrons behave in their orbitals The level in which an electron has the least energy—the lowest energy level—has only one orbital. Higher energy levels have mo ...