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Chemistry Syllabus - Madison County Schools
... Periodic properties (e.g., metal/nonmetal/metalloid behavior, electrical/heat conductivity, electronegativity, electron affinity, ionization energy, atomic/covalent/ionic radius) 2e. Compare the properties of compounds according to their type of bonding. (DOK 1) Covalent, ionic, and metallic bon ...
... Periodic properties (e.g., metal/nonmetal/metalloid behavior, electrical/heat conductivity, electronegativity, electron affinity, ionization energy, atomic/covalent/ionic radius) 2e. Compare the properties of compounds according to their type of bonding. (DOK 1) Covalent, ionic, and metallic bon ...
Elements and Compounds
... • Atoms of the same element can have different masses. • They always have the same number of protons, but they can have different numbers of neutrons in their nuclei. • The difference in the number of neutrons accounts for the difference in ...
... • Atoms of the same element can have different masses. • They always have the same number of protons, but they can have different numbers of neutrons in their nuclei. • The difference in the number of neutrons accounts for the difference in ...
Atoms and Integers Classwork
... An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons. The protons and the neutrons make up the center of the atom called the nucleus and the electrons fly around above the nucleus in a small cloud. Each electron carries a negative ch ...
... An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons. The protons and the neutrons make up the center of the atom called the nucleus and the electrons fly around above the nucleus in a small cloud. Each electron carries a negative ch ...
ch. 4 atoms outline notes
... a. A unified atomic mass unit (u) is equal to one-twelth of the mass of a carbon -12 atom (sometimes called the atomic mass unit, amu) (2) Average atomic mass is a weighted average. It is the average of all of elements isotopes. (3) The mole is useful for counting small particles. (4) Mole – the SI ...
... a. A unified atomic mass unit (u) is equal to one-twelth of the mass of a carbon -12 atom (sometimes called the atomic mass unit, amu) (2) Average atomic mass is a weighted average. It is the average of all of elements isotopes. (3) The mole is useful for counting small particles. (4) Mole – the SI ...
01 - cloudfront.net
... The statements below are false. For each statement, replace the underlined term to make a true statement. ...
... The statements below are false. For each statement, replace the underlined term to make a true statement. ...
Atomic Number, Atomic Mass
... Number of protons always equals number of electrons. The number of protons is the Atomic Number (Z) and defines the element. The Mass Number (A) is the total mass of the atom, i.e. number of protons (Z) + number of neutrons (N) ...
... Number of protons always equals number of electrons. The number of protons is the Atomic Number (Z) and defines the element. The Mass Number (A) is the total mass of the atom, i.e. number of protons (Z) + number of neutrons (N) ...
Atomic Structure and Elements
... – Electrons – (e-) – negative charge - In a neutral atom: Number of protons (+)= Number of electrons (-) ...
... – Electrons – (e-) – negative charge - In a neutral atom: Number of protons (+)= Number of electrons (-) ...
Atomic Theory - Sardis Secondary
... The energy levels of hydrogen have the pattern below (“n” is the number of the energy level). ...
... The energy levels of hydrogen have the pattern below (“n” is the number of the energy level). ...
Chapter 2 - Chemistry
... 1.) labels the groups with Roman numerals and A s and B s i.) North America (IA) ii.) Europe (AI) Categories within periodic table: - main-group elements: A groups - transition elements: B groups - inner-transition elements: lanthanides (1st row) actinides (2nd row) 2.) International Union of Pure a ...
... 1.) labels the groups with Roman numerals and A s and B s i.) North America (IA) ii.) Europe (AI) Categories within periodic table: - main-group elements: A groups - transition elements: B groups - inner-transition elements: lanthanides (1st row) actinides (2nd row) 2.) International Union of Pure a ...
Chemistry I Syllabus 2011-2012
... Classroom Procedures: 1. Enter the classroom quietly, sit in your assigned seat and begin work. 2. Turn in assignments to the appropriate box assigned to your class and in a timely manner. 3. Sharpen pencils only during student work time and only until you hear the sharpener change pitch. 4. No hall ...
... Classroom Procedures: 1. Enter the classroom quietly, sit in your assigned seat and begin work. 2. Turn in assignments to the appropriate box assigned to your class and in a timely manner. 3. Sharpen pencils only during student work time and only until you hear the sharpener change pitch. 4. No hall ...
Match the person / institution with the concept / discovery
... a. Negative electrons are found around a small, dense, massive, positive nucleus containing positive protons and neutral neutrons. The behavior of each electron is described in terms of probabilities that are used to identify a region of space in which there is a high probability of finding an elect ...
... a. Negative electrons are found around a small, dense, massive, positive nucleus containing positive protons and neutral neutrons. The behavior of each electron is described in terms of probabilities that are used to identify a region of space in which there is a high probability of finding an elect ...
Ch 3 Notes Atoms
... decimal – is always the larger number on the periodic table. mass number (A) - sum of the protons and neutrons in a nucleus this number is rounded from atomic mass due to the fact that there are isotopes # neutrons = A - Z example - # of neutrons in Li = 6.941-3 = 3.941 rounds to 4 Ion – a charged a ...
... decimal – is always the larger number on the periodic table. mass number (A) - sum of the protons and neutrons in a nucleus this number is rounded from atomic mass due to the fact that there are isotopes # neutrons = A - Z example - # of neutrons in Li = 6.941-3 = 3.941 rounds to 4 Ion – a charged a ...
1.2--NOTES--Basic Atomic Structure
... • all symbols must either be one capital letter, or one capital and one lowercase. •atomic number = number of p+. Written in bottomleft-hand corner of symbol. Identifies the element. •mass number = number of p+ & n0. Identifies the isotope. Written in top-left-hand corner. •average atomic mass = wei ...
... • all symbols must either be one capital letter, or one capital and one lowercase. •atomic number = number of p+. Written in bottomleft-hand corner of symbol. Identifies the element. •mass number = number of p+ & n0. Identifies the isotope. Written in top-left-hand corner. •average atomic mass = wei ...
Atomic Theory - World of Teaching
... begun to tarnish. Some of the metal in the coins had begun to change color. The formation of tarnish is most similar to which of the following changes? shredding a piece of paper into hundreds of tiny strips dropping a dinner plate on the floor ...
... begun to tarnish. Some of the metal in the coins had begun to change color. The formation of tarnish is most similar to which of the following changes? shredding a piece of paper into hundreds of tiny strips dropping a dinner plate on the floor ...
Atomic
... • Electrons are much smaller than protons (2000 times smaller). • Electrons move around the nucleus very quickly. Scientists have found that it is not possible to determine the exact position of any single electron in an atom because they are moving too fast. This is why we picture electrons as a cl ...
... • Electrons are much smaller than protons (2000 times smaller). • Electrons move around the nucleus very quickly. Scientists have found that it is not possible to determine the exact position of any single electron in an atom because they are moving too fast. This is why we picture electrons as a cl ...
Name: Period:______ Date: CHEMISTRY Chapter 3 AND Nuclear
... 27. When chemical reactions take place atoms rearrange in whole number ratios. Atoms do not split in half ...
... 27. When chemical reactions take place atoms rearrange in whole number ratios. Atoms do not split in half ...
Chapter 2 PowerPoint
... • Plato and Aristotle formulated the notion that there can be no ultimately indivisible particles, so the “atomic” view faded for a number of years. • John Dalton (1766-1844) performed experiments to study the ratios in which elements combine in chemical reactions. He formulated hypotheses and theor ...
... • Plato and Aristotle formulated the notion that there can be no ultimately indivisible particles, so the “atomic” view faded for a number of years. • John Dalton (1766-1844) performed experiments to study the ratios in which elements combine in chemical reactions. He formulated hypotheses and theor ...
atomic
... discovered a neutral atomic particle with a mass close to a proton. What he discovered was the neutron. -Discovered the third subatomic particle of the atom: the neutron 450 BC 400 BC 350 BC ...
... discovered a neutral atomic particle with a mass close to a proton. What he discovered was the neutron. -Discovered the third subatomic particle of the atom: the neutron 450 BC 400 BC 350 BC ...
Atomic Structure: valence electrons, Chemistry and the periodic table
... Potassium has 19 electrons. It is relatively easy to remove one electron but substantially more difficult to then remove a second electron. Why is this? A. The second electron feels a stronger attraction to the other electrons than did the first electron that was removed. B. When the first electron ...
... Potassium has 19 electrons. It is relatively easy to remove one electron but substantially more difficult to then remove a second electron. Why is this? A. The second electron feels a stronger attraction to the other electrons than did the first electron that was removed. B. When the first electron ...
Quarterly 1 Review Trupia - Trupia
... electrons present in the fifth energy level (shell)? ____60. Which element forms an ion that is larger (1) Sb (3) I than its atom? (2) Bi (4) Br (1) aluminum (3) magnesium (2) chlorine (4) sodium ____54. Lithium and potassium have similar chemical properties because the atoms of both ____61. As the ...
... electrons present in the fifth energy level (shell)? ____60. Which element forms an ion that is larger (1) Sb (3) I than its atom? (2) Bi (4) Br (1) aluminum (3) magnesium (2) chlorine (4) sodium ____54. Lithium and potassium have similar chemical properties because the atoms of both ____61. As the ...
Periodic table
The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number (number of protons in the nucleus), electron configurations, and recurring chemical properties. The table also shows four rectangular blocks: s-, p- d- and f-block. In general, within one row (period) the elements are metals on the lefthand side, and non-metals on the righthand side.The rows of the table are called periods; the columns are called groups. Six groups (columns) have names as well as numbers: for example, group 17 elements are the halogens; and group 18, the noble gases. The periodic table can be used to derive relationships between the properties of the elements, and predict the properties of new elements yet to be discovered or synthesized. The periodic table provides a useful framework for analyzing chemical behavior, and is widely used in chemistry and other sciences.Although precursors exist, Dmitri Mendeleev is generally credited with the publication, in 1869, of the first widely recognized periodic table. He developed his table to illustrate periodic trends in the properties of the then-known elements. Mendeleev also predicted some properties of then-unknown elements that would be expected to fill gaps in this table. Most of his predictions were proved correct when the elements in question were subsequently discovered. Mendeleev's periodic table has since been expanded and refined with the discovery or synthesis of further new elements and the development of new theoretical models to explain chemical behavior.All elements from atomic numbers 1 (hydrogen) to 118 (ununoctium) have been discovered or reportedly synthesized, with elements 113, 115, 117, and 118 having yet to be confirmed. The first 94 elements exist naturally, although some are found only in trace amounts and were synthesized in laboratories before being found in nature. Elements with atomic numbers from 95 to 118 have only been synthesized in laboratories. It has been shown that einsteinium and fermium once occurred in nature but currently do not. Synthesis of elements having higher atomic numbers is being pursued. Numerous synthetic radionuclides of naturally occurring elements have also been produced in laboratories.