Atoms and atomic spectra
... Tiny nucleus with protons and neutrons (~99.98% of mass) Surrounded by large diffuse cloud of low mass electrons ...
... Tiny nucleus with protons and neutrons (~99.98% of mass) Surrounded by large diffuse cloud of low mass electrons ...
Early Models of the Atom
... •Ancient civilizations have wondered what made up the stuff around them. •Some early ideas included natural elements like earth, air, fire and water. (Empedocles) •The Greek philosopher, Democritus, suggested that matter could be cut down into smaller pieces until you reached a single indivisible pa ...
... •Ancient civilizations have wondered what made up the stuff around them. •Some early ideas included natural elements like earth, air, fire and water. (Empedocles) •The Greek philosopher, Democritus, suggested that matter could be cut down into smaller pieces until you reached a single indivisible pa ...
Document
... B. Electrical force C. Friction D. Gravitational potential energy 43. A student applies a force to a box with a mass of 30 kg. If the student applies the same force to a box with a mass of 15 kg, which best describes the effect on the acceleration of the 15-kg box? A. It is half the acceleration of ...
... B. Electrical force C. Friction D. Gravitational potential energy 43. A student applies a force to a box with a mass of 30 kg. If the student applies the same force to a box with a mass of 15 kg, which best describes the effect on the acceleration of the 15-kg box? A. It is half the acceleration of ...
NOTES: ATOMIC THEORY
... 2. An atom that gains electrons becomes negatively charged and is called an anion. 3. An ion may be mono-atomic (contains only one element), poly-atomic (contains two or more elements creating a group that behaves as ONE unit), or complex (contains central metal ion surrounded by group of molecules ...
... 2. An atom that gains electrons becomes negatively charged and is called an anion. 3. An ion may be mono-atomic (contains only one element), poly-atomic (contains two or more elements creating a group that behaves as ONE unit), or complex (contains central metal ion surrounded by group of molecules ...
atoms II - Doral Academy Preparatory
... by two electrons. The next shell is filled too -- with eight electrons. Neon doesn't need any more electrons to fill its outermost shell, so it doesn't participate in chemical reactions. It is what we call an inert gas, one that doesn't combine with other elements. ...
... by two electrons. The next shell is filled too -- with eight electrons. Neon doesn't need any more electrons to fill its outermost shell, so it doesn't participate in chemical reactions. It is what we call an inert gas, one that doesn't combine with other elements. ...
1 CP Chemistry 2013-2014 Chapter 3 Notes Name: Important Vocab
... Robert Millikan 1909 The experimental apparatus looked like: ...
... Robert Millikan 1909 The experimental apparatus looked like: ...
Energy - Haiku for Ignatius
... Because the atom can exist only in specific energy states, it can contain only an amount of energy equal to the amount necessary to attain an energy level, not any amount in between levels. › We refer to this property as the quantized nature of energy. › Quantized – only certain values are allowed. ...
... Because the atom can exist only in specific energy states, it can contain only an amount of energy equal to the amount necessary to attain an energy level, not any amount in between levels. › We refer to this property as the quantized nature of energy. › Quantized – only certain values are allowed. ...
electrons - Clay County OutReach
... the 1700’s nearly all chemists had accepted the modern definition of an element as a particle that is indivisible It was also understood at that time that elements combine to form compounds that are different in their properties than the elements that composed them However, ...
... the 1700’s nearly all chemists had accepted the modern definition of an element as a particle that is indivisible It was also understood at that time that elements combine to form compounds that are different in their properties than the elements that composed them However, ...
Chapter 4 Models of the Atom
... • According to the law of definite composition, the mass ratio of carbon to oxygen in carbon dioxide is always the same. Carbon dioxide is composed of one carbon atom and two oxygen atoms. • Similarly, two atoms of hydrogen and one atom of oxygen combine to give water. • Dalton proposed that two ...
... • According to the law of definite composition, the mass ratio of carbon to oxygen in carbon dioxide is always the same. Carbon dioxide is composed of one carbon atom and two oxygen atoms. • Similarly, two atoms of hydrogen and one atom of oxygen combine to give water. • Dalton proposed that two ...
Power Point Atomic Theory 2016
... ► Suggested world was made of two things – empty space and “atomos” Atomos – Greek word for uncuttable ...
... ► Suggested world was made of two things – empty space and “atomos” Atomos – Greek word for uncuttable ...
Historical Development of the Periodic Table Periodic Table of the
... properties of the elements vary periodically with increasing atomic mass. • This is known as his Periodic Law. Nevertheless he placed greater importance on properties than on atomic mass values. • He was able to predict, with great accuracy, the properties of the elements that should fit into the ga ...
... properties of the elements vary periodically with increasing atomic mass. • This is known as his Periodic Law. Nevertheless he placed greater importance on properties than on atomic mass values. • He was able to predict, with great accuracy, the properties of the elements that should fit into the ga ...
Ch 6.7 - Explaining the Atom
... - Atoms are unique because of the number of protons they have in their nucleus. - The number of protons in the nucleus is known as the Atomic Number. - Elements are arranged on the Periodic Table according to increasing Atomic Number. - You can not combine different atoms to make new elements. Coppe ...
... - Atoms are unique because of the number of protons they have in their nucleus. - The number of protons in the nucleus is known as the Atomic Number. - Elements are arranged on the Periodic Table according to increasing Atomic Number. - You can not combine different atoms to make new elements. Coppe ...
Historical Development of the Periodic Table
... increasing atomic mass. • This is known as his Periodic Law. Nevertheless he placed greater importance on properties than on atomic mass values. • He was able to predict, with great accuracy, the properties of the elements that should fit into the gaps he had left. ...
... increasing atomic mass. • This is known as his Periodic Law. Nevertheless he placed greater importance on properties than on atomic mass values. • He was able to predict, with great accuracy, the properties of the elements that should fit into the gaps he had left. ...
AP Chap 2
... The Energy Levels of Electrons • Energy is the capacity to cause change • Potential energy is the energy that matter has because of its location or structure • The electrons of an atom differ in their amounts of potential energy • An electron’s state of potential energy is called its energy level, ...
... The Energy Levels of Electrons • Energy is the capacity to cause change • Potential energy is the energy that matter has because of its location or structure • The electrons of an atom differ in their amounts of potential energy • An electron’s state of potential energy is called its energy level, ...
Atomic
... atoms to form long, complex molecules. When chemists refer to organic molecules, they generally use structural formulas. A diagram of the molecule is often more helpful than the name. Because of the high percentage of carbon and hydrogen in organic molecules, the molecules are drawn without labeling ...
... atoms to form long, complex molecules. When chemists refer to organic molecules, they generally use structural formulas. A diagram of the molecule is often more helpful than the name. Because of the high percentage of carbon and hydrogen in organic molecules, the molecules are drawn without labeling ...
periodic table
... than the diameter of the nucleus. • In contrast, each electron in the cloud is much smaller than a single proton. • Because an electron’s mass is small and the electron is moving so quickly around the nucleus, it is impossible to describe its exact location in an atom. ...
... than the diameter of the nucleus. • In contrast, each electron in the cloud is much smaller than a single proton. • Because an electron’s mass is small and the electron is moving so quickly around the nucleus, it is impossible to describe its exact location in an atom. ...
groups (families) vs rows
... The black oxide of iron, Fe3O4 , occurs in nature as the mineral magnetite. This substance can also be made in the laboratory by the reaction between red-hot iron and steam according to the following equation: Fe (s) + H2O (g) → Fe3O4 (s) + H2 (g) a. ...
... The black oxide of iron, Fe3O4 , occurs in nature as the mineral magnetite. This substance can also be made in the laboratory by the reaction between red-hot iron and steam according to the following equation: Fe (s) + H2O (g) → Fe3O4 (s) + H2 (g) a. ...
NotesHistory of Atomic Structure
... ______ ____ toward the _______ source! Rutherford ___________ that the reason some particles bounced back was that there was a very ______ ________________area that occupied only a very _____ amount of _____ within the core of the atom (________). to explain this, Rutherford proposed a new _____ f ...
... ______ ____ toward the _______ source! Rutherford ___________ that the reason some particles bounced back was that there was a very ______ ________________area that occupied only a very _____ amount of _____ within the core of the atom (________). to explain this, Rutherford proposed a new _____ f ...
Atomic Structure Teaching Resources
... 2.01 Analyze the historical development of the current atomic theory. – Early contributions: Democritus and Dalton. – The discovery of the electron: Thomson and Millikan. – The discovery of the nucleus, proton and neutron: Rutherford and Chadwick. – The Bohr model. – The quantum mechanical model. 2. ...
... 2.01 Analyze the historical development of the current atomic theory. – Early contributions: Democritus and Dalton. – The discovery of the electron: Thomson and Millikan. – The discovery of the nucleus, proton and neutron: Rutherford and Chadwick. – The Bohr model. – The quantum mechanical model. 2. ...
1.5.16(Chem) - mrcarlsonschemistryclass
... Compounds • Atoms bonded together with an IONIC bond are called ionic compounds. • An ionic bond is a METAL bonded with a NONMETAL. • Draw the crystal lattice structure for sodium chloride: ...
... Compounds • Atoms bonded together with an IONIC bond are called ionic compounds. • An ionic bond is a METAL bonded with a NONMETAL. • Draw the crystal lattice structure for sodium chloride: ...
Chapter 11 Chemical Reactions
... metals, if they are above metal trying to replace (i.e. Zn will replace Pb) ...
... metals, if they are above metal trying to replace (i.e. Zn will replace Pb) ...
File
... 2. ______________________ and ____________________ are in the nucleus of the atom and when added together they give you the ___________________________ of the atom. 3. _________________ move quickly and constantly around the outside of the nucleus in the ____________ __________. 4. The number of ___ ...
... 2. ______________________ and ____________________ are in the nucleus of the atom and when added together they give you the ___________________________ of the atom. 3. _________________ move quickly and constantly around the outside of the nucleus in the ____________ __________. 4. The number of ___ ...