Notes - Zion Central Middle School
... Atoms are made up of subatomic particles—protons, neutrons and electrons. o Protons and neutrons are in the nucleus of an atom. o Electrons occupy orbitals or electron clouds that surround the nucleus. Protons are found in the nucleus of atoms and have an electric charge of +1. Neutrons are found in ...
... Atoms are made up of subatomic particles—protons, neutrons and electrons. o Protons and neutrons are in the nucleus of an atom. o Electrons occupy orbitals or electron clouds that surround the nucleus. Protons are found in the nucleus of atoms and have an electric charge of +1. Neutrons are found in ...
Atomic Structure -
... Because valence electrons are on the last shell, they are the ones that are furthest from the positive field of the protons. Valance electrons are the electrons that determine if an atom can bond with another atom. This means that the valence electrons could be attracted to the nucleus of more posit ...
... Because valence electrons are on the last shell, they are the ones that are furthest from the positive field of the protons. Valance electrons are the electrons that determine if an atom can bond with another atom. This means that the valence electrons could be attracted to the nucleus of more posit ...
Regents Chemistry
... Robert Boyle (1627 – 1691) – the first scientist to recognize the importance of careful measurements. Defined the term element in terms of experimentation; a substance was an element unless it could be broken down into two or more simpler substances ...
... Robert Boyle (1627 – 1691) – the first scientist to recognize the importance of careful measurements. Defined the term element in terms of experimentation; a substance was an element unless it could be broken down into two or more simpler substances ...
Atomic Structure
... Table is determined by its proton number. All elements in the same group have the same number of valence electrons, which is the same as the Group number. All elements in the same period have the same number of electron shells. ...
... Table is determined by its proton number. All elements in the same group have the same number of valence electrons, which is the same as the Group number. All elements in the same period have the same number of electron shells. ...
Periodic Trends
... Anions are bigger than the atom they come from. Nonmetals form anions. Anions of ‘main’ groups elements have noble gas configuration. ...
... Anions are bigger than the atom they come from. Nonmetals form anions. Anions of ‘main’ groups elements have noble gas configuration. ...
Structure of Atoms
... Atoms contain protons, neutrons, and electrons. Protons - positive charge – 1 atomic mass unit Neutrons – no charge – 1 atomic mass unit Electrons – negative charge – almost no mass ...
... Atoms contain protons, neutrons, and electrons. Protons - positive charge – 1 atomic mass unit Neutrons – no charge – 1 atomic mass unit Electrons – negative charge – almost no mass ...
Classification of Matter
... Metal atoms have few valence electrons and will lose valence electrons leaving a full inner shell (metals are born losers) Non-metal atoms have larger number of valence electrons (close to full) and tend to gain electrons. (Non-metals are winners) Metals, during chemical reactions will undergo a los ...
... Metal atoms have few valence electrons and will lose valence electrons leaving a full inner shell (metals are born losers) Non-metal atoms have larger number of valence electrons (close to full) and tend to gain electrons. (Non-metals are winners) Metals, during chemical reactions will undergo a los ...
Document
... 38) Elements that are shiny conductive solids at room temperature are likely to be classified as which of the following? a) metals b) nonmetals c) inert gases ...
... 38) Elements that are shiny conductive solids at room temperature are likely to be classified as which of the following? a) metals b) nonmetals c) inert gases ...
UNIT 1: THE ATOM
... a. All elements are composed of indivisible atoms. b. All atoms of a given element are identical. c. Atoms of different elements are different, that is they have different masses. d. Compounds are formed from the combination of atoms of different elements. Some of Dalton’s theory is not correct. He ...
... a. All elements are composed of indivisible atoms. b. All atoms of a given element are identical. c. Atoms of different elements are different, that is they have different masses. d. Compounds are formed from the combination of atoms of different elements. Some of Dalton’s theory is not correct. He ...
Lecture 4.03 - Bohr`s Atomic Model
... Bohr’s Atomic Model Q:What are the Bohr models for the neutral atoms of the two isotopes of carbon? A: Step-1 Draw a box to represent the nucleus. Step-2 Determine the number of protons and neutrons and place them in the nucleus. Step-3 Draw two circles around the nucleus to represent the electron ...
... Bohr’s Atomic Model Q:What are the Bohr models for the neutral atoms of the two isotopes of carbon? A: Step-1 Draw a box to represent the nucleus. Step-2 Determine the number of protons and neutrons and place them in the nucleus. Step-3 Draw two circles around the nucleus to represent the electron ...
File
... Lanthanide series are part of the inner transition elements. 6. Actinide series- transition metals that follow the element actinium in Period 7 of the periodic table; all actinides are radioactive. Actinide series are part of the inner transition. 7. Noble gases- any of the gaseous elements helium, ...
... Lanthanide series are part of the inner transition elements. 6. Actinide series- transition metals that follow the element actinium in Period 7 of the periodic table; all actinides are radioactive. Actinide series are part of the inner transition. 7. Noble gases- any of the gaseous elements helium, ...
Chapter 8 - Atomic Electron Configuration and Chemical Periodicity
... orbitals) ‘shield’ some of this charge. The ___________ __________ __________ is the charge experienced by an electron in a multielectron atom, as modified by the presence of other electrons. The order of electron filling and many atomic properties can be explained by Z*. Consider Li atom (1s22s1): ...
... orbitals) ‘shield’ some of this charge. The ___________ __________ __________ is the charge experienced by an electron in a multielectron atom, as modified by the presence of other electrons. The order of electron filling and many atomic properties can be explained by Z*. Consider Li atom (1s22s1): ...
key concepts of matter
... Key Concept 1: During a chemical reaction, the atoms of substances rearrange themselves into a new configuration forming new substances. The reactants (or the energy and atoms or molecules of the original substance) combine to produce products (or the energy, atoms, and molecules of the new substanc ...
... Key Concept 1: During a chemical reaction, the atoms of substances rearrange themselves into a new configuration forming new substances. The reactants (or the energy and atoms or molecules of the original substance) combine to produce products (or the energy, atoms, and molecules of the new substanc ...
Key Concept 1: An atom is the smallest unit of an element that
... Key Concept 10: The reactivity of an atom is how easily and readily its valence electrons interact with the valence electrons of other atoms. Atoms of metals have a tendency to transfer electrons to nonmetals when they react. Atoms of nonmetals have a tendency to gain or share electrons when they re ...
... Key Concept 10: The reactivity of an atom is how easily and readily its valence electrons interact with the valence electrons of other atoms. Atoms of metals have a tendency to transfer electrons to nonmetals when they react. Atoms of nonmetals have a tendency to gain or share electrons when they re ...
Unit 3 PowerPoint
... stating that it is impossible to observe both the location and momentum of an electron simultaneously • 1933: Erwin Schrodinger – Refines the use of the equation named after him to develop the concept of electron orbitals to replace the planetary motion of the electron ...
... stating that it is impossible to observe both the location and momentum of an electron simultaneously • 1933: Erwin Schrodinger – Refines the use of the equation named after him to develop the concept of electron orbitals to replace the planetary motion of the electron ...
CHEM 481. Chapter 1. Atomic stucture and periodic table. Answers
... All the magnitudes increase from left to right across the period, since each trend reflects the increasing Z* as electrons are being added to orbitals of the same shell. For IP, this reflects the difficulty of removing an electron. For EG enthalpy, this reflects energy released when an additional el ...
... All the magnitudes increase from left to right across the period, since each trend reflects the increasing Z* as electrons are being added to orbitals of the same shell. For IP, this reflects the difficulty of removing an electron. For EG enthalpy, this reflects energy released when an additional el ...
09/09/03 lecture
... • Different elements have different numbers of protons in their atoms. • Atomic number: number of protons in the atom; different elements have different atomic numbers. • A neutral atom (i.e., one with no net charge) will have the same number of electrons as protons). • Most chemical properties are ...
... • Different elements have different numbers of protons in their atoms. • Atomic number: number of protons in the atom; different elements have different atomic numbers. • A neutral atom (i.e., one with no net charge) will have the same number of electrons as protons). • Most chemical properties are ...
Bohr-Rutherford Lewis Dot Diagrams Worksheet
... Bohr-Rutherford diagrams are one model that describes what an atom looks like. Consider the atom of lithium. What does the BohrRutherford diagram look like? Step 1: Using the periodic table, calculate the number of protons, neutrons and electrons. Atomic number ...
... Bohr-Rutherford diagrams are one model that describes what an atom looks like. Consider the atom of lithium. What does the BohrRutherford diagram look like? Step 1: Using the periodic table, calculate the number of protons, neutrons and electrons. Atomic number ...
Bohr-Rutherford Lewis Dot Diagrams Worksheet
... Bohr-Rutherford diagrams are one model that describes what an atom looks like. Consider the atom of lithium. What does the Bohr-Rutherford diagram look like? Step 1: Using the periodic table, calculate the number of protons, neutrons and electrons. Atomic number ...
... Bohr-Rutherford diagrams are one model that describes what an atom looks like. Consider the atom of lithium. What does the Bohr-Rutherford diagram look like? Step 1: Using the periodic table, calculate the number of protons, neutrons and electrons. Atomic number ...
Periodic Table Properties Notes s1
... table are called groups or families. • Each group contains elements with similar chemical properties. • Every element within a group has the same number of valence electrons. • The number of valence electrons determines an element’s chemical characteristics ...
... table are called groups or families. • Each group contains elements with similar chemical properties. • Every element within a group has the same number of valence electrons. • The number of valence electrons determines an element’s chemical characteristics ...
Models of the Atom and Periodic Trends Worksheet
... John Dalton proposed that all matter is made up of tiny particles. These particles are molecules or atoms. Molecules can be broken down into atoms by chemical processes. Atoms cannot be broken down by chemical or physical processes. According to the law of definite composition, the mass ratio of car ...
... John Dalton proposed that all matter is made up of tiny particles. These particles are molecules or atoms. Molecules can be broken down into atoms by chemical processes. Atoms cannot be broken down by chemical or physical processes. According to the law of definite composition, the mass ratio of car ...
Periodic Table
... electrons are also called valence electrons. They are the ones involved in chemical bonds with other elements. Besides that, a row goes from left to right, it’s is called a period. Elements of the same period have the same number of electron shells. - Every element in the first column (group one) ha ...
... electrons are also called valence electrons. They are the ones involved in chemical bonds with other elements. Besides that, a row goes from left to right, it’s is called a period. Elements of the same period have the same number of electron shells. - Every element in the first column (group one) ha ...
Atomic Theory, and the Periodic Table
... represents the nucleus. The p+ stands for protons, and the n0, neutrons. The circles around the nucleus represent the energy levels. The e- stands for electrons and their negative charge. ...
... represents the nucleus. The p+ stands for protons, and the n0, neutrons. The circles around the nucleus represent the energy levels. The e- stands for electrons and their negative charge. ...
elements in a family have the same number of
... valence electrons. Most elements in this family share electrons when forming compounds. Oxygen is the most abundant element in the earth’s crust. It is extremely active and combines with almost all elements. ...
... valence electrons. Most elements in this family share electrons when forming compounds. Oxygen is the most abundant element in the earth’s crust. It is extremely active and combines with almost all elements. ...