Atomic Structure Notes
... them) is called a period Each vertical column is called a group, or family Elements in a group have similar chemical and physical properties Identified with a number and either an “A” or “B” More presented in Chapter 6 ...
... them) is called a period Each vertical column is called a group, or family Elements in a group have similar chemical and physical properties Identified with a number and either an “A” or “B” More presented in Chapter 6 ...
Atoms {PowerPoint}
... • The learner will use appropriate models and analogies to describe the size of an atom and its particles. • The learner will explain the development of the atomic theory. ...
... • The learner will use appropriate models and analogies to describe the size of an atom and its particles. • The learner will explain the development of the atomic theory. ...
Chapter 5 Notes: The Structure of Matter
... the left side of periodic table Negative ions are gasses on the right side of periodic table ...
... the left side of periodic table Negative ions are gasses on the right side of periodic table ...
Atomic Size - ThinkChemistry
... on going down a column in the periodic table and also on going across a row. Going Down a Group (column): The size of an atom increases going down a group. This is because on going down the group from one element to the next, an electron energy level is added each time. Going Across a Period (row): ...
... on going down a column in the periodic table and also on going across a row. Going Down a Group (column): The size of an atom increases going down a group. This is because on going down the group from one element to the next, an electron energy level is added each time. Going Across a Period (row): ...
Chp 3 notes Click Here
... Atoms can gain from other atoms or lose electrons to other atoms. An atom that loses an electron has a net positive charge because there are more protons than electrons. Remember the atom started with equal numbers of protons and electrons. An atom that gains an electron has a net negative charge be ...
... Atoms can gain from other atoms or lose electrons to other atoms. An atom that loses an electron has a net positive charge because there are more protons than electrons. Remember the atom started with equal numbers of protons and electrons. An atom that gains an electron has a net negative charge be ...
intro to trends - hrsbstaff.ednet.ns.ca
... Compare the relative electronegative values of two or more elements based on their position on the periodic table. ...
... Compare the relative electronegative values of two or more elements based on their position on the periodic table. ...
6.1 Organizing the Periodic Table
... • Valence electron- electron that is in the highest occupied energy level of an atom • Valence electrons play a key role in chemical reactions • Properties vary across a period because the # of valence electrons increases from left to right • Elements in a group have similar properties because they ...
... • Valence electron- electron that is in the highest occupied energy level of an atom • Valence electrons play a key role in chemical reactions • Properties vary across a period because the # of valence electrons increases from left to right • Elements in a group have similar properties because they ...
The Development of Atomic Theory
... Quantum Mechanical Atomic Orbitals The orbital images on this page represent the shape of the atomic orbitals. The clouds you see are the probability distribution of an electron bound to a Hydrogen nucleus. ...
... Quantum Mechanical Atomic Orbitals The orbital images on this page represent the shape of the atomic orbitals. The clouds you see are the probability distribution of an electron bound to a Hydrogen nucleus. ...
Unit 3 `Atoms and the Periodic Table` Study Guide
... Electron – a subatomic particle in an atom that is negatively charged and that occupies the energy levels in an atom; electrons are involved in chemical bonds and reactions. Electron Dot Diagram – a representation of the number of valence electrons in an atom, using dots placed around the symbol of ...
... Electron – a subatomic particle in an atom that is negatively charged and that occupies the energy levels in an atom; electrons are involved in chemical bonds and reactions. Electron Dot Diagram – a representation of the number of valence electrons in an atom, using dots placed around the symbol of ...
Atomic Theory
... in half you would eventually end up with an “uncutable” particle. Which he called an atom • Greek: Atomos - indivisible ...
... in half you would eventually end up with an “uncutable” particle. Which he called an atom • Greek: Atomos - indivisible ...
8th Grade
... 15. Who was the Greek philosopher who lived 2300 years ago, and what did he think? _________________________________________________________________________________________ 16. In 1800 another scientist added to the idea of the Greek guy. Who was this man and what was his idea? ____________________ ...
... 15. Who was the Greek philosopher who lived 2300 years ago, and what did he think? _________________________________________________________________________________________ 16. In 1800 another scientist added to the idea of the Greek guy. Who was this man and what was his idea? ____________________ ...
The Atom - Fairfield Public Schools
... answer is …quarks! A proton and a neutron is each made of 3 quarks. Look at the table and see if you can figure out which combination of 3 quarks make a proton and which 3 make a neutron. ...
... answer is …quarks! A proton and a neutron is each made of 3 quarks. Look at the table and see if you can figure out which combination of 3 quarks make a proton and which 3 make a neutron. ...
Study Guide Answers
... Metalloids are located on either side of the Boron Stair step have properties of both metals and nonmetals. ● they are solids that can be shiny or dull ● they conduct heat and electricity better than nonmetals, but not as well as real metals ● they are ductile and malleable What is the difference be ...
... Metalloids are located on either side of the Boron Stair step have properties of both metals and nonmetals. ● they are solids that can be shiny or dull ● they conduct heat and electricity better than nonmetals, but not as well as real metals ● they are ductile and malleable What is the difference be ...
File
... Definition: Weighted average of masses of all isotopes of an element. Molar mass: ________________________________________________________________________ e.g., Molar mass of Cl is ____________. 35.591mA Where did this number come from? • Scientific data tells us that there are two isotopes of chlor ...
... Definition: Weighted average of masses of all isotopes of an element. Molar mass: ________________________________________________________________________ e.g., Molar mass of Cl is ____________. 35.591mA Where did this number come from? • Scientific data tells us that there are two isotopes of chlor ...
Notes for Unit 2
... do not orbit randomly in an atom. Bohr came up with the idea of the electron shells. For example as an electron gained or lost energy it would jump between these shells. James Chadwick discovered the next improvement in the atomic theory. His idea was that the nucleus contained neutral particles cal ...
... do not orbit randomly in an atom. Bohr came up with the idea of the electron shells. For example as an electron gained or lost energy it would jump between these shells. James Chadwick discovered the next improvement in the atomic theory. His idea was that the nucleus contained neutral particles cal ...
Chemistry Review
... Energy Levels: region around the nucleus where the electron is likely to be moving. a ladder that isn’t equally spaced further the distance, closer the spacing the higher the energy level the farther it is from the nucleus Electrons can jump from 1 energy level to another. ...
... Energy Levels: region around the nucleus where the electron is likely to be moving. a ladder that isn’t equally spaced further the distance, closer the spacing the higher the energy level the farther it is from the nucleus Electrons can jump from 1 energy level to another. ...
Midterm Review answers - Nutley Public Schools
... This is an atom of a given element that differs in the number of neutrons B. What two bits of information must be known in order to calculate the average atomic mass for an element? The mass numbers of the isotopes, and the percent abundance of each C. Use the following information to calculate the ...
... This is an atom of a given element that differs in the number of neutrons B. What two bits of information must be known in order to calculate the average atomic mass for an element? The mass numbers of the isotopes, and the percent abundance of each C. Use the following information to calculate the ...
المرحلة الثانية / فيزياء المحاضرة الثامنة E
... uncuttable, or indivisible, something that cannot be divided further. The concept of an atom as an indivisible component of matter was first proposed by early Indian and Greek philosophers. In the 17th and 18th centuries, chemists provided a physical basis for this idea by showing that certain subst ...
... uncuttable, or indivisible, something that cannot be divided further. The concept of an atom as an indivisible component of matter was first proposed by early Indian and Greek philosophers. In the 17th and 18th centuries, chemists provided a physical basis for this idea by showing that certain subst ...
Period Table Properties and Trends Powerpoint 10-21-14
... • Cations are always smaller than the original atom. • The entire outer PEL is removed during ...
... • Cations are always smaller than the original atom. • The entire outer PEL is removed during ...
ATOMIC MASS
... Draw the structure of water. Write down all the types of bonding that you know of. ...
... Draw the structure of water. Write down all the types of bonding that you know of. ...
Atoms are not the smallest thing
... 1897.J. Thomson demonstrates that cathode rays consist of negatively charged particles. The first sighting of the electron: a particle much smaller than an atom. ...
... 1897.J. Thomson demonstrates that cathode rays consist of negatively charged particles. The first sighting of the electron: a particle much smaller than an atom. ...
Periodic Trends
... gained electrons. (Anions are negative ions; cations are positive ions). Ionization energy is the energy needed to remove an electron from a gaseous atom. The Trend of Ionization Energy… Ionization energy increases as you go left to right on the periodic table. As you go let to right, the ra ...
... gained electrons. (Anions are negative ions; cations are positive ions). Ionization energy is the energy needed to remove an electron from a gaseous atom. The Trend of Ionization Energy… Ionization energy increases as you go left to right on the periodic table. As you go let to right, the ra ...