VIBRATIONS AND WAVES
... The first periodic table is mostly credited to (5) ___________________. In his table, the elements were arranged according to increasing (6) ___________________. One important result of this table was that the existence and properties of undiscovered (7) _________________ could be predicted. The ele ...
... The first periodic table is mostly credited to (5) ___________________. In his table, the elements were arranged according to increasing (6) ___________________. One important result of this table was that the existence and properties of undiscovered (7) _________________ could be predicted. The ele ...
Presently
... • Throughout time, scientists have developed ideas about atoms. • The ideas have become more accurate over time. • For each scientist, you need to list their major contributions, or what made their model different from those that came before. ...
... • Throughout time, scientists have developed ideas about atoms. • The ideas have become more accurate over time. • For each scientist, you need to list their major contributions, or what made their model different from those that came before. ...
Labeling a Blank Periodic Table
... distance between the nuclei in a molecule consisting of identical atoms ...
... distance between the nuclei in a molecule consisting of identical atoms ...
Atomic theory
... Atoms of one element are all the same; atoms of a different element are different (Au atoms are different from Ag atoms) Atoms cannot be changed into different atoms by chemical of physical changes (Pb atoms cannot be turned into Au atoms) All atoms are like Billiard Balls – a solid, sphere Atoms re ...
... Atoms of one element are all the same; atoms of a different element are different (Au atoms are different from Ag atoms) Atoms cannot be changed into different atoms by chemical of physical changes (Pb atoms cannot be turned into Au atoms) All atoms are like Billiard Balls – a solid, sphere Atoms re ...
File - McArthur Media
... bonded together. • Molecules - This is a particle that has more than one atom bonded together (can be the same or a different type of atom). • Mixture – This is a combination of two or more things that can usually be easily separated. ...
... bonded together. • Molecules - This is a particle that has more than one atom bonded together (can be the same or a different type of atom). • Mixture – This is a combination of two or more things that can usually be easily separated. ...
File - CToThe3Chemistry
... As you try to learn about the trends in the periodic table, there are two ways to go about it. 1. Memorize trends 2. Understand the periodic table and what it means Though memorizing the trends may seem easier to begin with, it is the understanding of the periodic table that will lead to long-term s ...
... As you try to learn about the trends in the periodic table, there are two ways to go about it. 1. Memorize trends 2. Understand the periodic table and what it means Though memorizing the trends may seem easier to begin with, it is the understanding of the periodic table that will lead to long-term s ...
Pearson Ch.4 Sect.1 Review worksheet
... Use this completion exercise to check your understanding of the concepts and terms that are introduced in this section. Each blank can be completed with a term, short phrase, or number. Elements are composed of tiny particles called _______ Atoms ...
... Use this completion exercise to check your understanding of the concepts and terms that are introduced in this section. Each blank can be completed with a term, short phrase, or number. Elements are composed of tiny particles called _______ Atoms ...
Section 3.2 Guided Notes
... thin foil of _________. b. Most of the particles passed straight _________ the foil, but a few were ______________, some even ____________________. c. Only a very concentrated ___________ charge in a tiny space within the gold atom could possibly repel the fast-moving alpha particles enough to _____ ...
... thin foil of _________. b. Most of the particles passed straight _________ the foil, but a few were ______________, some even ____________________. c. Only a very concentrated ___________ charge in a tiny space within the gold atom could possibly repel the fast-moving alpha particles enough to _____ ...
Semester 1 Final Exam Study Guide
... 24. A graduated cylinder has 20 ml (cm3) of water placed in it. An irregularly shaped rock is then dropped in the graduated cylinder and the volume of the rock and water in the cylinder now reads 30 ml (cm3). The mass of the rock dropped into the graduated cylinder is 23 grams. a. Find the volume o ...
... 24. A graduated cylinder has 20 ml (cm3) of water placed in it. An irregularly shaped rock is then dropped in the graduated cylinder and the volume of the rock and water in the cylinder now reads 30 ml (cm3). The mass of the rock dropped into the graduated cylinder is 23 grams. a. Find the volume o ...
Document
... • How is an elements atomic number like a person’s fingerprint? • Homework: Calculate the p, n and electrons in the following: tantalum, samarium, uranium ...
... • How is an elements atomic number like a person’s fingerprint? • Homework: Calculate the p, n and electrons in the following: tantalum, samarium, uranium ...
Chapter 4 Atomic Structure
... • ELECTRONS were first discover in 1897. – Electrons have a NEGATIVE electrical charge. – Electrons have a VERY SMALL MASS. It takes 1837 electrons to weigh as much as ONE PROTON. – The symbol for an electron is ...
... • ELECTRONS were first discover in 1897. – Electrons have a NEGATIVE electrical charge. – Electrons have a VERY SMALL MASS. It takes 1837 electrons to weigh as much as ONE PROTON. – The symbol for an electron is ...
Discovery Education Science Connection
... To answer these questions, scientists returned to the atomic model. John Dalton, a 19th-century English chemist, proposed that all elements were made of atoms. His breakthrough idea was that each element was made of a unique type of atom. For example, an atom of lead was different from an atom of go ...
... To answer these questions, scientists returned to the atomic model. John Dalton, a 19th-century English chemist, proposed that all elements were made of atoms. His breakthrough idea was that each element was made of a unique type of atom. For example, an atom of lead was different from an atom of go ...
the periodic law
... strongly attracts additional electrons in the same energy level 8. Group trends – among the main group elements, ionization energies generally decrease down the groups. a. The size of the atom increases as we go down; thus the outermost electron is farther from the nucleus with an increased shieldin ...
... strongly attracts additional electrons in the same energy level 8. Group trends – among the main group elements, ionization energies generally decrease down the groups. a. The size of the atom increases as we go down; thus the outermost electron is farther from the nucleus with an increased shieldin ...
ATOMIC THEORY AND STRUCTURE
... How can positive charge repel? - When positive charge comes near another positive charge • Evidence: The positive light is hitting something dense and positive within the atom for the light to be repelled and bounced back • Rutherford’s atomic model: all of an atoms positive charge is concentrated a ...
... How can positive charge repel? - When positive charge comes near another positive charge • Evidence: The positive light is hitting something dense and positive within the atom for the light to be repelled and bounced back • Rutherford’s atomic model: all of an atoms positive charge is concentrated a ...
I - Holland Public Schools
... *NOTE: no protons or neutrons yet * Problem with Rutherford’s Model – Where are the electrons? He didn’t have a good answer for this D. Niels Bohr (1913) - electrons are in energy levels; based his concept on Quantam Theory and bright-line spectra for hydrogen 1) Quantam Theory – Max Planck (1900) – ...
... *NOTE: no protons or neutrons yet * Problem with Rutherford’s Model – Where are the electrons? He didn’t have a good answer for this D. Niels Bohr (1913) - electrons are in energy levels; based his concept on Quantam Theory and bright-line spectra for hydrogen 1) Quantam Theory – Max Planck (1900) – ...
Quiz 1 - sample quiz
... 9. Which one of the following statements is false? a) An electron jumps from a high energy orbital to a lower energy orbital when a photon of energy is emitted by an atom. b) The energy of light is directly proportional to its wavelength. c) The atomic emission spectrum consists of a series of discr ...
... 9. Which one of the following statements is false? a) An electron jumps from a high energy orbital to a lower energy orbital when a photon of energy is emitted by an atom. b) The energy of light is directly proportional to its wavelength. c) The atomic emission spectrum consists of a series of discr ...
The Atom Power point - Effingham County Schools
... • Aristotle was wrong. However, his theory persisted for 2000 years. ...
... • Aristotle was wrong. However, his theory persisted for 2000 years. ...
California Standards Practice
... 11. According to the graph, which of these elements has the strongest attraction for electrons? A. Boron (atomic number = 5) B. Calcium (atomic number = 20) C. Hydrogen (atomic number = 1) D. Sulfur (atomic number = 16) 12. The ionization energy of an element indicates the energy it takes to remove ...
... 11. According to the graph, which of these elements has the strongest attraction for electrons? A. Boron (atomic number = 5) B. Calcium (atomic number = 20) C. Hydrogen (atomic number = 1) D. Sulfur (atomic number = 16) 12. The ionization energy of an element indicates the energy it takes to remove ...
Review Outline for Atomic Structure Test
... a. What determines the location of an electron in the electron cloud? How many energy levels are present. Electrons fill the energy levels in order (2-8-8-18) b. How many electrons can be found in the first energy level of an atom? 2 c. How many electrons can be found in the second energy level of a ...
... a. What determines the location of an electron in the electron cloud? How many energy levels are present. Electrons fill the energy levels in order (2-8-8-18) b. How many electrons can be found in the first energy level of an atom? 2 c. How many electrons can be found in the second energy level of a ...
period
... A halogen of the second period The alkaline earth metal in the fifth period The noble gas with the smallest atomic number The non-metal in the fifth period with seven outermost electrons The alkali metal of the fourth period The metal of the third period with three outermost electrons ...
... A halogen of the second period The alkaline earth metal in the fifth period The noble gas with the smallest atomic number The non-metal in the fifth period with seven outermost electrons The alkali metal of the fourth period The metal of the third period with three outermost electrons ...
Atoms - ChemConnections
... The understanding that matter is composed of different elements evolved over thousands of years. Substances such as gold and silver were known in ancient times, but they were not understood to be elements. The alchemists, who did not understand elements or atoms, tried to change substances into gold ...
... The understanding that matter is composed of different elements evolved over thousands of years. Substances such as gold and silver were known in ancient times, but they were not understood to be elements. The alchemists, who did not understand elements or atoms, tried to change substances into gold ...
Chapter 4 Cornell Notes
... ____________________ of large atoms into smaller pieces) and nuclear ____________________ (the ____________________ of small atoms into one large one), but on earth these reactions do not occur naturally. 2) Naturally occurring nuclear reactions result from the unusual number of neutrons of an isoto ...
... ____________________ of large atoms into smaller pieces) and nuclear ____________________ (the ____________________ of small atoms into one large one), but on earth these reactions do not occur naturally. 2) Naturally occurring nuclear reactions result from the unusual number of neutrons of an isoto ...
Name
... 31. How many electrons are in a neutral atom of an element with an atomic mass of 48 and an atomic number of 22? __________________ 32. What are the period, group, and symbol for Tin? period___________group_________symbol__________ 33. What number that is represented on each element of the periodic ...
... 31. How many electrons are in a neutral atom of an element with an atomic mass of 48 and an atomic number of 22? __________________ 32. What are the period, group, and symbol for Tin? period___________group_________symbol__________ 33. What number that is represented on each element of the periodic ...