Key Scientists
... atom is contained in the nucleus • The nucleus is made of the protons and neutrons • Electrons are distributed around the nucleus • Electrons occupy almost all of the atoms volume • Rutherford’s model is still being revised today! ...
... atom is contained in the nucleus • The nucleus is made of the protons and neutrons • Electrons are distributed around the nucleus • Electrons occupy almost all of the atoms volume • Rutherford’s model is still being revised today! ...
Vocabulary Review
... e. positively charged particle that exists in the nucleus of an atom f. tiny bits of matter that are the building blocks of an atom Set Two----------------------------------------------------------------------------------------------------------1. _____group of elements a. atoms of the same element ...
... e. positively charged particle that exists in the nucleus of an atom f. tiny bits of matter that are the building blocks of an atom Set Two----------------------------------------------------------------------------------------------------------1. _____group of elements a. atoms of the same element ...
Chemistry General v. 2016
... Relate an element’s position on the periodic table to its electron configuration. Compare an element’s relativity to that of other elements. Describe chemical reactions in terms of atomic rearrangement and /or electron configuration. Explain how the periodicity of chemical properties led to the arra ...
... Relate an element’s position on the periodic table to its electron configuration. Compare an element’s relativity to that of other elements. Describe chemical reactions in terms of atomic rearrangement and /or electron configuration. Explain how the periodicity of chemical properties led to the arra ...
Chemical Reaction and Matter Review
... Once one element is balanced, proceed to balance another, and another, until all elements are balanced. Balance chemical formulas by placing coefficients in front of them. Do not add subscripts, because this will change the formulas. Classify Chemical Reactions Chemists have identified millions of d ...
... Once one element is balanced, proceed to balance another, and another, until all elements are balanced. Balance chemical formulas by placing coefficients in front of them. Do not add subscripts, because this will change the formulas. Classify Chemical Reactions Chemists have identified millions of d ...
Document
... A. the amount of product formed by a chemical reaction. B. whether or not a specific chemical reaction is possible. C. the coefficients needed to balance a chemical equation. ...
... A. the amount of product formed by a chemical reaction. B. whether or not a specific chemical reaction is possible. C. the coefficients needed to balance a chemical equation. ...
Unit 03 Packet - Whitwell High School
... nucleus of an atom. The atom is __________ because this is also the number of __________ charged __________ in the atom. 2. The mass number tells the total number of________ and _________ in the nucleus of an atom. These particles collectively are called ___________ since both are located in the nuc ...
... nucleus of an atom. The atom is __________ because this is also the number of __________ charged __________ in the atom. 2. The mass number tells the total number of________ and _________ in the nucleus of an atom. These particles collectively are called ___________ since both are located in the nuc ...
Atomic Structure
... All matter was continuous –no matter how small a substance was, the original properties were the same. Matter was made of the four basic elements fire, water, air, earth. Did not know about atoms. ...
... All matter was continuous –no matter how small a substance was, the original properties were the same. Matter was made of the four basic elements fire, water, air, earth. Did not know about atoms. ...
Chemistry exam review
... 2. The gases helium, neon, and argon are in separate containers at 55°C. Which is true about the kinetic energy of the gases? a. Helium has the lowest mass and therefore the greatest kinetic energy. b. They each have a different kinetic energy. c. Argon has greatest mass and therefore the greatest ...
... 2. The gases helium, neon, and argon are in separate containers at 55°C. Which is true about the kinetic energy of the gases? a. Helium has the lowest mass and therefore the greatest kinetic energy. b. They each have a different kinetic energy. c. Argon has greatest mass and therefore the greatest ...
View PDF - Bridge City ISD
... item… and moles is the SI base unit used to measure the amount of a substance whose number of particles is the same as the number of atoms of carbon in exactly 12 g of carbon-12 (moles are a measure of the number of particles, not the mass) ...
... item… and moles is the SI base unit used to measure the amount of a substance whose number of particles is the same as the number of atoms of carbon in exactly 12 g of carbon-12 (moles are a measure of the number of particles, not the mass) ...
Chemistry exam review
... a. When aqueous solutions are mixed, a precipitate is formed. b. As ammonium nitrate dissolves in water, it causes the temperature to decrease. c. Alcohol evaporates when left in an open container. d. Water is added to blue copper(II) chloride solution. The resulting mixture is lighter blue in color ...
... a. When aqueous solutions are mixed, a precipitate is formed. b. As ammonium nitrate dissolves in water, it causes the temperature to decrease. c. Alcohol evaporates when left in an open container. d. Water is added to blue copper(II) chloride solution. The resulting mixture is lighter blue in color ...
THE ATOM - A COMPUTER GUIDED LESSON
... 1. Write out the Atomic Molecular Theory of Matter. 2. How can scientists know so much about atoms when they are so small that they cannot see them? 3. What is Indirect Evidence? 4. What is a model? 5. Scientists have been making models of atoms for a long time. Can a model ever be changed? Explain ...
... 1. Write out the Atomic Molecular Theory of Matter. 2. How can scientists know so much about atoms when they are so small that they cannot see them? 3. What is Indirect Evidence? 4. What is a model? 5. Scientists have been making models of atoms for a long time. Can a model ever be changed? Explain ...
Chapter 2 PowerPoint
... • Atoms of the various elements differ in number of subatomic particles • An element’s atomic number is the number of protons in its nucleus • An element’s mass number is the sum of protons plus neutrons in the nucleus • Atomic mass, the atom’s total mass, can be approximated by the mass number Copy ...
... • Atoms of the various elements differ in number of subatomic particles • An element’s atomic number is the number of protons in its nucleus • An element’s mass number is the sum of protons plus neutrons in the nucleus • Atomic mass, the atom’s total mass, can be approximated by the mass number Copy ...
Atomic Structure
... All matter was continuous –no matter how small a substance was, the original properties were the same. Matter was made of the four basic elements fire, water, air, earth. Did not know about atoms. ...
... All matter was continuous –no matter how small a substance was, the original properties were the same. Matter was made of the four basic elements fire, water, air, earth. Did not know about atoms. ...
Chapter 2 Expanded Notes
... atoms are classified into elements based on certain characteristics, which we call identity, and they retain this identity through chemical reactions. Atoms of one element are different from atoms of another element. However, all atoms of the same element have some identifying mark in common. Also n ...
... atoms are classified into elements based on certain characteristics, which we call identity, and they retain this identity through chemical reactions. Atoms of one element are different from atoms of another element. However, all atoms of the same element have some identifying mark in common. Also n ...
Notes - ChemWeb (UCC)
... The fourth postulate above provides an ‘atomic’ explanation of this law. But Dalton took this further. From his experiments with nitrogen and oxygen, he concluded that there were 3 possible oxides depending on the relative ratios of the two elements. Hence he deduced his law of multiple proportions. ...
... The fourth postulate above provides an ‘atomic’ explanation of this law. But Dalton took this further. From his experiments with nitrogen and oxygen, he concluded that there were 3 possible oxides depending on the relative ratios of the two elements. Hence he deduced his law of multiple proportions. ...
CHEMISTRY
... One element replaces a similar element in a compound Also called displacement Many are in aqueous solutions Less E required The more active element replaces the less active one Most active metals (group 1) react w/water and produce metal hydroxides ...
... One element replaces a similar element in a compound Also called displacement Many are in aqueous solutions Less E required The more active element replaces the less active one Most active metals (group 1) react w/water and produce metal hydroxides ...
Document
... • “bed check” for electrons • description on how are electrons organized around the nucleus of protons and neutrons • Bohr model: Nils Bohr proposed electrons “orbit” around the atom’s nucleus in specific energy levels or orbits (electron shells) – these shells have a specific energy level – closer ...
... • “bed check” for electrons • description on how are electrons organized around the nucleus of protons and neutrons • Bohr model: Nils Bohr proposed electrons “orbit” around the atom’s nucleus in specific energy levels or orbits (electron shells) – these shells have a specific energy level – closer ...
Lecture two
... • “bed check” for electrons • description on how are electrons organized around the nucleus of protons and neutrons • Bohr model: Nils Bohr proposed electrons “orbit” around the atom’s nucleus in specific energy levels or orbits (electron shells) – these shells have a specific energy level – closer ...
... • “bed check” for electrons • description on how are electrons organized around the nucleus of protons and neutrons • Bohr model: Nils Bohr proposed electrons “orbit” around the atom’s nucleus in specific energy levels or orbits (electron shells) – these shells have a specific energy level – closer ...
l - HCC Learning Web
... Calculate the wavelength (in nm) of a photon emitted by a hydrogen atom when its electron drops from the n = 5 state to the n = 3 state. ...
... Calculate the wavelength (in nm) of a photon emitted by a hydrogen atom when its electron drops from the n = 5 state to the n = 3 state. ...
CHAPTER 2: MATTER
... Of course it does – It’s all around, in and out, In fact, it’s what we’re all about! ...
... Of course it does – It’s all around, in and out, In fact, it’s what we’re all about! ...
II. Masses of Atoms
... • A MOLECULE OF CARBON MONOXIDE, CO, HAS ONE ATOM OF OXYGEN WHILE A MOLECULE OF CARBON DIOXIDE, CO2, HAS TWO. IN A SAMPLE OF CO CONTAINING 1 G OF CARBON, 1.33 G OF OXYGEN WILL COMBINE WITH THE CARBON TO FORM THE MOLECULE. WHAT IS THE MASS OF OXYGEN IN A SAMPLE OF CO2 CONTAINING 1 G OF ...
... • A MOLECULE OF CARBON MONOXIDE, CO, HAS ONE ATOM OF OXYGEN WHILE A MOLECULE OF CARBON DIOXIDE, CO2, HAS TWO. IN A SAMPLE OF CO CONTAINING 1 G OF CARBON, 1.33 G OF OXYGEN WILL COMBINE WITH THE CARBON TO FORM THE MOLECULE. WHAT IS THE MASS OF OXYGEN IN A SAMPLE OF CO2 CONTAINING 1 G OF ...
chapter 11: modern atomic theory
... Werner Heisenberg (1927); Heisenberg Uncertainty Principle – For very small particles (e.g. proton, neutrons, electrons), there is an inherent uncertainty in the particles’ position and motion. → It is impossible to determine both the particle’s position and its momentum. → It is impossible to dete ...
... Werner Heisenberg (1927); Heisenberg Uncertainty Principle – For very small particles (e.g. proton, neutrons, electrons), there is an inherent uncertainty in the particles’ position and motion. → It is impossible to determine both the particle’s position and its momentum. → It is impossible to dete ...
Review # 3
... b. All elements are made of indivisible, indestructible atoms. c. Atoms of one element can be converted into a different element. d. Compounds are the result of the combination of atoms of different elements. e. All atoms of a given element are identical. ...
... b. All elements are made of indivisible, indestructible atoms. c. Atoms of one element can be converted into a different element. d. Compounds are the result of the combination of atoms of different elements. e. All atoms of a given element are identical. ...