Key Terms Democritus - (born c. 460 — died c. 370 BC) Greek
... Law of Definite Proportions - elements composing a compound are always present in the same proportions by mass Law of Multiple Proportions - law stating that when two elements can combine to form more than one compound the amounts of one of them that combines with a fixed amount of the other will ex ...
... Law of Definite Proportions - elements composing a compound are always present in the same proportions by mass Law of Multiple Proportions - law stating that when two elements can combine to form more than one compound the amounts of one of them that combines with a fixed amount of the other will ex ...
I. Historical Atomic Models - Hobbs Freshman High School
... 1. 1st energy level (K) can hold up to 2 e-. 2. 2nd energy level (L) can hold up to 8 e-. 3. 3rd energy level (M) can hold up to 18 e- IF it is NOT the outermost energy level. 4. 4th energy level (N) can hold up to 32 e- IF it is NOT the outermost energy level. C. The # of energy levels of an atom d ...
... 1. 1st energy level (K) can hold up to 2 e-. 2. 2nd energy level (L) can hold up to 8 e-. 3. 3rd energy level (M) can hold up to 18 e- IF it is NOT the outermost energy level. 4. 4th energy level (N) can hold up to 32 e- IF it is NOT the outermost energy level. C. The # of energy levels of an atom d ...
chapter_17_atomic_structure_review
... passed through.(like charges repel) • Rutherford discovered the nucleus as a result of his experiment ...
... passed through.(like charges repel) • Rutherford discovered the nucleus as a result of his experiment ...
A.P. Chemistry Complexation Reactions
... AX + BY AY + BX Two compounds switch partners and form two new compounds. ...
... AX + BY AY + BX Two compounds switch partners and form two new compounds. ...
CHAPTER 4 ATOMIC STRUCTURE
... • An ________in an atom can move _______energy levels when the atoms gain or ____energy • The ____of the jump between orbitals determines the amount of energy ______or ____ • Evidence for movement from one level to another is _____--light is a form of ______-----heat is another cause of ________of e ...
... • An ________in an atom can move _______energy levels when the atoms gain or ____energy • The ____of the jump between orbitals determines the amount of energy ______or ____ • Evidence for movement from one level to another is _____--light is a form of ______-----heat is another cause of ________of e ...
Document
... all of the particles in the atom. • In the center are circles. Each circle represents a single neutron or proton. Protons should have a plus or “p” written on them. Neutrons should an “n” or zero. • In a circle around the nucleus are the electrons. Electrons should have a minus sign or an e. ...
... all of the particles in the atom. • In the center are circles. Each circle represents a single neutron or proton. Protons should have a plus or “p” written on them. Neutrons should an “n” or zero. • In a circle around the nucleus are the electrons. Electrons should have a minus sign or an e. ...
Diapositiva 1
... – Some particles were deflected at large angles – Discovery: atoms have a very dense positive (+) center, called the nucleus ...
... – Some particles were deflected at large angles – Discovery: atoms have a very dense positive (+) center, called the nucleus ...
Full Text PDF - Science and Education Publishing
... The answer to the aforementioned question is given by quantum electrodynamics (QED), a theory that combines quantum mechanics and special relativity, usually taught in Physics advanced courses. The basic idea is easy to grasp: electrons (especially the most internal ones) interacting with a heavy nu ...
... The answer to the aforementioned question is given by quantum electrodynamics (QED), a theory that combines quantum mechanics and special relativity, usually taught in Physics advanced courses. The basic idea is easy to grasp: electrons (especially the most internal ones) interacting with a heavy nu ...
File
... • Alkaline-earth metals (Group 2) – light reactive metals • form oxide coatings when exposed to air • these seal surfaces and prevent further reaction ...
... • Alkaline-earth metals (Group 2) – light reactive metals • form oxide coatings when exposed to air • these seal surfaces and prevent further reaction ...
notes - van Maarseveen
... Information in the periodic table – if you look at the square for each element, you will find two important numbers Number at the top = atomic number Number at the bottom = atomic mass Why are the atomic masses not always whole numbers? Some elements have different forms (known as isotopes) that hav ...
... Information in the periodic table – if you look at the square for each element, you will find two important numbers Number at the top = atomic number Number at the bottom = atomic mass Why are the atomic masses not always whole numbers? Some elements have different forms (known as isotopes) that hav ...
Section 5.3
... • In general, because of the increase in atomic radii, both the anions and cations of a group are larger as one goes down a group. Exceptions occur in some of the p-block groups as elements change from non-metals to metals across the ...
... • In general, because of the increase in atomic radii, both the anions and cations of a group are larger as one goes down a group. Exceptions occur in some of the p-block groups as elements change from non-metals to metals across the ...
Define:
... 78. Which subatomic particle plays the greatest part in determining the properties of an element? 79. Chlorine has two naturally occurring isotopes, Cl-35 and Cl-37. The atomic mass of chlorine is 35.45. Which of these two isotopes of chlorine is more abundant? 80. Consider an element Z that has two ...
... 78. Which subatomic particle plays the greatest part in determining the properties of an element? 79. Chlorine has two naturally occurring isotopes, Cl-35 and Cl-37. The atomic mass of chlorine is 35.45. Which of these two isotopes of chlorine is more abundant? 80. Consider an element Z that has two ...
Periodic Trends - Issaquah Connect
... – ½ the distance between the nuclei of two atoms of the same element when the atoms are joined ...
... – ½ the distance between the nuclei of two atoms of the same element when the atoms are joined ...
effective nuclear charge
... Supports idea that sharing and transfer of e- give rise to chemical bonding and reactions- inner e- too tightly bounds to nucleus ...
... Supports idea that sharing and transfer of e- give rise to chemical bonding and reactions- inner e- too tightly bounds to nucleus ...
Atomic Structure: SOL Review #1 Name: Historical Developments 1
... The electrons are not “singly before pairing.” Electrons repel each other, so they do want not pair until there is no more “space” left in the sublevel. Periodic Table and Periodic Trends 27) Which elements would have similar properties to Na? ...
... The electrons are not “singly before pairing.” Electrons repel each other, so they do want not pair until there is no more “space” left in the sublevel. Periodic Table and Periodic Trends 27) Which elements would have similar properties to Na? ...
The Dalton Thompson 1889 Rutherford Niels Bohr Moseley
... The famous ‘gold foil experiment’ by Rutherford proved the ‘Plum Pudding’ model wrong as not all alpha particles passed through the gold atoms, some were deflected. The positively charged alpha particle hit a positive substance which caused it to be deflected, therefore atoms must have a nucleus whe ...
... The famous ‘gold foil experiment’ by Rutherford proved the ‘Plum Pudding’ model wrong as not all alpha particles passed through the gold atoms, some were deflected. The positively charged alpha particle hit a positive substance which caused it to be deflected, therefore atoms must have a nucleus whe ...
Goal 1 Study Guide and Practice Problems Fill in the following table
... sample after 60 hours? M = 1.125 g 19. How are radioactive decay, fission, and fusion different? ...
... sample after 60 hours? M = 1.125 g 19. How are radioactive decay, fission, and fusion different? ...
Worksheet 3.1 People Who Helped Develop the Modern Model of
... positive and negative charges were evenly distributed. ...
... positive and negative charges were evenly distributed. ...
Reactions I Can..
... 13. Identify the source of energy in nuclear reactions. 14. Compare and contrast nuclear fusion and nuclear fission 15. Define isotope and identify a set of isotopes when given their mass numbers and atomic numbers. 16. Generalize how the relative abundance in nature of each element’s isotopes lead ...
... 13. Identify the source of energy in nuclear reactions. 14. Compare and contrast nuclear fusion and nuclear fission 15. Define isotope and identify a set of isotopes when given their mass numbers and atomic numbers. 16. Generalize how the relative abundance in nature of each element’s isotopes lead ...
Atoms
... 2. Describe the key steps in the formation of an ionic bond and a covalent bond 3. Demonstrate the use of electronegativity in predicting bond type 4. Predict the type of bonding (ionic, polar covalent, non-polar covalent, metallic) given any combination of two elements 5. Describe the essential asp ...
... 2. Describe the key steps in the formation of an ionic bond and a covalent bond 3. Demonstrate the use of electronegativity in predicting bond type 4. Predict the type of bonding (ionic, polar covalent, non-polar covalent, metallic) given any combination of two elements 5. Describe the essential asp ...