Topic 7b Redox notes
... sign followed by a number, or it is zero. Oxidation states of metals are usually written in roman numerals eg Iron (III) chloride. Atoms of elements have no overall charge and are therefore given an oxidation state of zero. When two elements combine, the atoms or ions of the more electropositive ele ...
... sign followed by a number, or it is zero. Oxidation states of metals are usually written in roman numerals eg Iron (III) chloride. Atoms of elements have no overall charge and are therefore given an oxidation state of zero. When two elements combine, the atoms or ions of the more electropositive ele ...
I. History of the Atomic Theory
... electrons (and it doesn’t matter how many neutrons they have) J. IONS – particles which do not have the same number of protons and electrons so therefore they do have an electrical charge associated with them. If they have more protons than electrons, they will have a positive charge. If they have m ...
... electrons (and it doesn’t matter how many neutrons they have) J. IONS – particles which do not have the same number of protons and electrons so therefore they do have an electrical charge associated with them. If they have more protons than electrons, they will have a positive charge. If they have m ...
Chapter 4 Review Packet Section 4.1
... •Democritus ideas agreed with scientific theory, but did not include chemical behavior and had a lack of experimental support. John Dalton •By using experimental methods, Dalton transformed Democritus's ideas on atoms into scientific theory •He studied the ratios in which elements combine in chemica ...
... •Democritus ideas agreed with scientific theory, but did not include chemical behavior and had a lack of experimental support. John Dalton •By using experimental methods, Dalton transformed Democritus's ideas on atoms into scientific theory •He studied the ratios in which elements combine in chemica ...
Chapter 2 Atoms and Elements
... the amount of space taken by the nucleus is only about 1/10 trillionth the volume of the atom The nucleus has essentially the entire mass of the atom the electrons weigh so little they give practically no mass to the atom The nucleus is positively charged the amount of positive charge balances ...
... the amount of space taken by the nucleus is only about 1/10 trillionth the volume of the atom The nucleus has essentially the entire mass of the atom the electrons weigh so little they give practically no mass to the atom The nucleus is positively charged the amount of positive charge balances ...
Chapter 2 Atoms and Elements
... the amount of space taken by the nucleus is only about 1/10 trillionth the volume of the atom The nucleus has essentially the entire mass of the atom the electrons weigh so little they give practically no mass to the atom The nucleus is positively charged the amount of positive charge balances ...
... the amount of space taken by the nucleus is only about 1/10 trillionth the volume of the atom The nucleus has essentially the entire mass of the atom the electrons weigh so little they give practically no mass to the atom The nucleus is positively charged the amount of positive charge balances ...
Chapter 4 Review Answers
... • An orbital, a three-dimensional region around the nucleus, shows the region in space where an electron is most likely to be found. • The four quantum numbers that describe the properties of electrons in atomic orbitals are the principal quantum number, the angular momentum quantum number, the magn ...
... • An orbital, a three-dimensional region around the nucleus, shows the region in space where an electron is most likely to be found. • The four quantum numbers that describe the properties of electrons in atomic orbitals are the principal quantum number, the angular momentum quantum number, the magn ...
Properties of Atoms - Bremen High School District 228
... The nucleus contains most of the mass of the atom because protons and neutrons are far more massive than electrons. The mass of a proton is about the same as that of a neutron— approximately 1.6726 1024 g, as shown in Table 2. The mass of each is approximately 1,836 times greater than the mass of ...
... The nucleus contains most of the mass of the atom because protons and neutrons are far more massive than electrons. The mass of a proton is about the same as that of a neutron— approximately 1.6726 1024 g, as shown in Table 2. The mass of each is approximately 1,836 times greater than the mass of ...
OCR_AS_Level_Chemistry_Unit_F321_Atoms
... For example, carbon has three isotopes 12C, 13C and 14C. Both have 6 protons but they have 6, 7 and 8 neutrons, respectively Isotopes of an element have the same chemical properties because they have the same electron arrangement Ions are formed when atoms gain or lose electrons. As an atom Ca has 2 ...
... For example, carbon has three isotopes 12C, 13C and 14C. Both have 6 protons but they have 6, 7 and 8 neutrons, respectively Isotopes of an element have the same chemical properties because they have the same electron arrangement Ions are formed when atoms gain or lose electrons. As an atom Ca has 2 ...
Atoms - Jensen Chemistry
... If you have 1 mole of books and 1 mole of feathers you have the same amount of each, but does 1 mole of books have the same mass as 1 mole of ...
... If you have 1 mole of books and 1 mole of feathers you have the same amount of each, but does 1 mole of books have the same mass as 1 mole of ...
Atoms, Molecules, and Life - Goshen Central School District
... defining value for an element • All atoms of an element have the same atomic number • e.g. Carbon has 6 protons, nitrogen has 7 Atoms of an element may vary in the number of neutrons they have in the nucleus • Variant atomic forms of an element are called isotopes • Some isotopes are radioactive and ...
... defining value for an element • All atoms of an element have the same atomic number • e.g. Carbon has 6 protons, nitrogen has 7 Atoms of an element may vary in the number of neutrons they have in the nucleus • Variant atomic forms of an element are called isotopes • Some isotopes are radioactive and ...
Always in Motion
... The single electron would be found in the "K" shell and the "s" suborbital. If you go on to learn about chemistry, you may see its description written as 1s1. Helium (He) is still in the K shell (top row), but it has two electrons. The first electron would be 1s1 and the second would be 1s2. What ab ...
... The single electron would be found in the "K" shell and the "s" suborbital. If you go on to learn about chemistry, you may see its description written as 1s1. Helium (He) is still in the K shell (top row), but it has two electrons. The first electron would be 1s1 and the second would be 1s2. What ab ...
II. Masses of Atoms
... • WHEN TWO PROTONS ARE EXTREMELY CLOSE TO EACH OTHER, THERE IS A STRONG ATTRACTION BETWEEN THEM. • A SIMILAR ATTRACTION EXISTS WHEN NEUTRONS ARE VERY CLOSE TO EACH OTHER OR WHEN PROTONS AND NEUTRONS ARE VERY CLOSE TOGETHER. • THE SHORT-RANGE PROTON-NEUTRON, PROTON-PROTON, AND NEUTRON-NEUTRON FORCES ...
... • WHEN TWO PROTONS ARE EXTREMELY CLOSE TO EACH OTHER, THERE IS A STRONG ATTRACTION BETWEEN THEM. • A SIMILAR ATTRACTION EXISTS WHEN NEUTRONS ARE VERY CLOSE TO EACH OTHER OR WHEN PROTONS AND NEUTRONS ARE VERY CLOSE TOGETHER. • THE SHORT-RANGE PROTON-NEUTRON, PROTON-PROTON, AND NEUTRON-NEUTRON FORCES ...
Atoms, Isotopes, and Ions - Science Take-Out
... 1. Use the information on the periodic table to make a model of a hydrogen atom. Then make a hydrogen ion by removing the electron (blue chip) from the model. Draw your ion model. Use a “+” sign for each proton, an “n” for each neutron and a “–” sign for each electron. ...
... 1. Use the information on the periodic table to make a model of a hydrogen atom. Then make a hydrogen ion by removing the electron (blue chip) from the model. Draw your ion model. Use a “+” sign for each proton, an “n” for each neutron and a “–” sign for each electron. ...
Accelerated Chemistry Chapter 4 Student Notes
... electron spin - clockwise or counterclockwise Pauli exclusion principle - 2 electrons in the same orbital must have Hund’s rule ( better known as the Stinky Bus Rule) - before any second electron can be placed in a sub level, all the orbitals of that sub level must ...
... electron spin - clockwise or counterclockwise Pauli exclusion principle - 2 electrons in the same orbital must have Hund’s rule ( better known as the Stinky Bus Rule) - before any second electron can be placed in a sub level, all the orbitals of that sub level must ...
1 - Mr. J`s Chemistry 4U
... 52) T / F : Every sample of a given pure substance can have different physical and chemical properties. 53) T / F : Every sample of a given pure substance has exactly the same chemical composition. 54) T / F : A pure substance cannot be separated into other substances without changing its identity. ...
... 52) T / F : Every sample of a given pure substance can have different physical and chemical properties. 53) T / F : Every sample of a given pure substance has exactly the same chemical composition. 54) T / F : A pure substance cannot be separated into other substances without changing its identity. ...
Chapter 1 (Matter and Measurement) Objectives
... b. Students know how to use the periodic table to identify metals, semimetals, non-metals, and halogens. c. Students know how to use the periodic table to identify alkali metals, alkaline earth metals and transition metals, trends in ionization energy, electronegativity, and the relative sizes of io ...
... b. Students know how to use the periodic table to identify metals, semimetals, non-metals, and halogens. c. Students know how to use the periodic table to identify alkali metals, alkaline earth metals and transition metals, trends in ionization energy, electronegativity, and the relative sizes of io ...
Chapter 4 Atomic Structure
... • Dalton’s atomic theory states that all atoms of a given element are identical. This is mostly true • Atoms of the same element can differ in the number of neutrons • most elements have two or more isotopes • Isotopes are atoms of the same element with different numbers of neutrons (and therefore d ...
... • Dalton’s atomic theory states that all atoms of a given element are identical. This is mostly true • Atoms of the same element can differ in the number of neutrons • most elements have two or more isotopes • Isotopes are atoms of the same element with different numbers of neutrons (and therefore d ...
elements and isotopes - vocabulary
... The number that represents the sum of the numbers of protons and neutrons in the nucleus of one atom; a combination of the atomic number and the mass number defines an isotope. atomic weight (relative atomic mass) The average mass of all atoms of a particular element found in nature. It is also call ...
... The number that represents the sum of the numbers of protons and neutrons in the nucleus of one atom; a combination of the atomic number and the mass number defines an isotope. atomic weight (relative atomic mass) The average mass of all atoms of a particular element found in nature. It is also call ...
Atoms and the Periodic Table
... *a. Extensions of PERIOD 6 (lanthanides) & PERIOD 7 (actinides) are below the periodic table *3. An element’s PROPERTIES can be predicted based on its LOCATION on the periodic table *a. to the right, left or bordering the ZIGZAG line indicates the “classification” of the ELEMENT as a METAL, NON-META ...
... *a. Extensions of PERIOD 6 (lanthanides) & PERIOD 7 (actinides) are below the periodic table *3. An element’s PROPERTIES can be predicted based on its LOCATION on the periodic table *a. to the right, left or bordering the ZIGZAG line indicates the “classification” of the ELEMENT as a METAL, NON-META ...
![The atom: Isotopes (Grade 10) [NCS]](http://s1.studyres.com/store/data/016109524_1-1437871a54cd24e5ee13c27e98f0719d-300x300.png)