Chapter 5: The Periodic Law
... Electronegativity: the tendency for an atom to attract electrons to itself when it is chemically combined with another element Expressed on the Pauling Electronegativity Scale Noble gases do not have electronegativities because they do not participate in many reactions ...
... Electronegativity: the tendency for an atom to attract electrons to itself when it is chemically combined with another element Expressed on the Pauling Electronegativity Scale Noble gases do not have electronegativities because they do not participate in many reactions ...
Chapter 4 Atomic Structure
... His ideas agreed with later scientific theory, but didn’t explain chemical behavior - was not based on scientific methods – only philosophy ...
... His ideas agreed with later scientific theory, but didn’t explain chemical behavior - was not based on scientific methods – only philosophy ...
Scientific Method and Atomic Structure: A Brief Review
... question about the world. This ___________________ must be repeatedly tested and supported if it is going to become part of a ________________. A ______________ is well accepted and is used to explain the answer to a very broad question. You are growing two plants at opposite ends of a garden to see ...
... question about the world. This ___________________ must be repeatedly tested and supported if it is going to become part of a ________________. A ______________ is well accepted and is used to explain the answer to a very broad question. You are growing two plants at opposite ends of a garden to see ...
The Periodic Table
... ∙ First to notice the element's periodic repetition of properties. ∙ Designed the first periodic table ...
... ∙ First to notice the element's periodic repetition of properties. ∙ Designed the first periodic table ...
ATOMIC THEORY
... particles through a small hole. The sheet of ________________ foil was surrounded by a screen coated with zinc sulfide, which glows when struck by the positively charged particles of the beam. The ________________ particles were expected to pass through without changing direction very much because ...
... particles through a small hole. The sheet of ________________ foil was surrounded by a screen coated with zinc sulfide, which glows when struck by the positively charged particles of the beam. The ________________ particles were expected to pass through without changing direction very much because ...
The Periodic Table - Brookwood High School
... Demetry Mendeleev organized the elements in the first periodic table in order of mass in 1870. ...
... Demetry Mendeleev organized the elements in the first periodic table in order of mass in 1870. ...
Early Atomic Theory
... An atomic theory is a model developed to explain the properties and behaviors of atoms. As with any scientific theory, an atomic theory is based on scientific evidence available at any given time and serves to suggest future lines of research about atoms. John Dalton's (1766–1844) atomic theory was: ...
... An atomic theory is a model developed to explain the properties and behaviors of atoms. As with any scientific theory, an atomic theory is based on scientific evidence available at any given time and serves to suggest future lines of research about atoms. John Dalton's (1766–1844) atomic theory was: ...
Example: Trend 2– Ionization Energy
... • Measures as distance from nucleus to the outermost electron • Unit commonly used is pm – picometer= 10-12m ...
... • Measures as distance from nucleus to the outermost electron • Unit commonly used is pm – picometer= 10-12m ...
Development of Atomic Theory.Part 2.WS
... • Can they change paths? The Modern Theory of the atom states that electrons do not travel in specific paths or orbits. • Describe the region where electrons travel. • Can we predict where an electron may be found? Electron clouds exist at a certain Energy Level. Therefore the energy that an electro ...
... • Can they change paths? The Modern Theory of the atom states that electrons do not travel in specific paths or orbits. • Describe the region where electrons travel. • Can we predict where an electron may be found? Electron clouds exist at a certain Energy Level. Therefore the energy that an electro ...
Chemical Periodicity
... can determine trends observed in many atomic properties. What type of forces can the electrons experience in an atom? – Charge from the nucleus. A strong attraction between the electron and the nucleus lowers the electron energy. The electron is more tightly bound to the atom. – Interactions among t ...
... can determine trends observed in many atomic properties. What type of forces can the electrons experience in an atom? – Charge from the nucleus. A strong attraction between the electron and the nucleus lowers the electron energy. The electron is more tightly bound to the atom. – Interactions among t ...
chapter 1 powerpoint
... which states: o All substances are made of atoms; atoms are small particles that cannot be created, divided, or destroyed. o Atoms of the same element are exactly alike, and atoms of different elements are different o Atoms join with other atoms to make new substances Calculated the atomic weights ...
... which states: o All substances are made of atoms; atoms are small particles that cannot be created, divided, or destroyed. o Atoms of the same element are exactly alike, and atoms of different elements are different o Atoms join with other atoms to make new substances Calculated the atomic weights ...
Activity 16 Elements and the Periodic Table
... Neutral atoms contain equal numbers of protons (+) and electrons (-). Because of this, you know that neutral atoms of lithium, beryllium, boron and carbon also have 3, 4, 5, and 6 electrons respectively. When two elements are near one another they often react. Much like reactions between two people, ...
... Neutral atoms contain equal numbers of protons (+) and electrons (-). Because of this, you know that neutral atoms of lithium, beryllium, boron and carbon also have 3, 4, 5, and 6 electrons respectively. When two elements are near one another they often react. Much like reactions between two people, ...
Structure of the atom
... Calcium-40: mass number = 40; atomic number = 20; number of protons = 20; number of neutrons = 20; number of electrons = 20 (Inquiry point 1) Carbon-14: mass number = 14; atomic number = 6; number of protons = 6; number of neutrons = 8; number of electrons = 6 (Inquiry point 2) Nitrogen-14: mass num ...
... Calcium-40: mass number = 40; atomic number = 20; number of protons = 20; number of neutrons = 20; number of electrons = 20 (Inquiry point 1) Carbon-14: mass number = 14; atomic number = 6; number of protons = 6; number of neutrons = 8; number of electrons = 6 (Inquiry point 2) Nitrogen-14: mass num ...
Answer Key to Chem Semester 1 Exam Review
... Answer Key to Chem Semester 1 Exam Review Questions (Parts 3 & 4) Pgs. 89-90 1. A. Because all chemical reactions are only the rearrangements of atoms, mass is neither created nor destroyed in such changes. B. Atoms of each element have their own characteristic mass, so compounds consisting of these ...
... Answer Key to Chem Semester 1 Exam Review Questions (Parts 3 & 4) Pgs. 89-90 1. A. Because all chemical reactions are only the rearrangements of atoms, mass is neither created nor destroyed in such changes. B. Atoms of each element have their own characteristic mass, so compounds consisting of these ...
The atom
... Atomic number (Z- the whole number on the PT) of an element is the number of protons in the nucleus of each atom of that element. ...
... Atomic number (Z- the whole number on the PT) of an element is the number of protons in the nucleus of each atom of that element. ...
Atom Democritus Dalton Thompson Rutherford Bohr Electron Cloud
... • Developed the plum pudding model. This said that negatively charged electrons were stuck on a positively charged ball. • The electron has a negative charge. Its mass is much smaller than the other 2 subatomic particles, therefore its mass is usually ignored. ...
... • Developed the plum pudding model. This said that negatively charged electrons were stuck on a positively charged ball. • The electron has a negative charge. Its mass is much smaller than the other 2 subatomic particles, therefore its mass is usually ignored. ...
Atomic Structure
... 3) Atoms of different elements can chemically combine with one another in simple whole number ratios (compounds) 4) In chemical reactions, atoms are separated, joined, and rearranged. Atoms of one element are never ...
... 3) Atoms of different elements can chemically combine with one another in simple whole number ratios (compounds) 4) In chemical reactions, atoms are separated, joined, and rearranged. Atoms of one element are never ...
The Development of Atomic Theory
... called “electron clouds” • You cannot predict exactly where an electron will be found http://www.fearofphysics.com/Atom/atom3.html ...
... called “electron clouds” • You cannot predict exactly where an electron will be found http://www.fearofphysics.com/Atom/atom3.html ...
Oct 14th ,2015
... •Isotopes have different numbers of neutrons. Carbon actually has 15 different isotopes! ...
... •Isotopes have different numbers of neutrons. Carbon actually has 15 different isotopes! ...
Intro. To Matter Jeopardy Review for Unit Test # Question Answer
... metals, nonmetals, or metalloids? ...
... metals, nonmetals, or metalloids? ...