Power point notes - Social Circle City Schools
... stated that if the atomic weight of an element caused it to be placed in the wrong group, then the weight must be wrong. (He corrected the atomic masses of Be, In, and U) was so confident in his table that he used it to predict the physical properties of three elements that were ...
... stated that if the atomic weight of an element caused it to be placed in the wrong group, then the weight must be wrong. (He corrected the atomic masses of Be, In, and U) was so confident in his table that he used it to predict the physical properties of three elements that were ...
Unit 9: Periodicity
... themselves when the elements were placed in order of atomic mass. Based on his realization, Mendeleev arranged the elements in order of increasing atomic mass, and in such a way that elements with similar chemical properties fell in the same column. He published a primitive version of today’s period ...
... themselves when the elements were placed in order of atomic mass. Based on his realization, Mendeleev arranged the elements in order of increasing atomic mass, and in such a way that elements with similar chemical properties fell in the same column. He published a primitive version of today’s period ...
periodic trend
... On one side, color and label the metals, nonmetals, and metalloids. Another name for “metalloid” is “semi-metal”. ...
... On one side, color and label the metals, nonmetals, and metalloids. Another name for “metalloid” is “semi-metal”. ...
YEAR 9 REVISION LIST November Exam 2013
... with similar properties are in columns known as Groups. The table is called a Periodic Table because elements with similar properties occur at regular intervals. The early Periodic Tables were incomplete and some elements were placed in inappropriate Groups if the strict order of atomic weights were ...
... with similar properties are in columns known as Groups. The table is called a Periodic Table because elements with similar properties occur at regular intervals. The early Periodic Tables were incomplete and some elements were placed in inappropriate Groups if the strict order of atomic weights were ...
Chapter 6 lecture 2013
... Water, Fire, and Earth Scientists have identified 90 naturally occurring elements, and created about 28 others ...
... Water, Fire, and Earth Scientists have identified 90 naturally occurring elements, and created about 28 others ...
Chapter 4 – Atomic Structure (Sec 4.2 pages 108
... Transition Metals • Some transition elements have more properties in common than elements in other groups. – Elements in the lanthanide and actinide series – These elements are so similar that chemists in the 1800s had difficulty separating them when they were found mixed together in nature. ...
... Transition Metals • Some transition elements have more properties in common than elements in other groups. – Elements in the lanthanide and actinide series – These elements are so similar that chemists in the 1800s had difficulty separating them when they were found mixed together in nature. ...
Finals Review ans 2012sem 1
... which is the metal? 105. A sample of calcium contains calcium-40, calcium-44, calcium-42, calcium-48, calcium-43, and calcium-46 atoms. Explain why these atoms can have different mass numbers but must have the same atomic number. 106. Describe how water can change from a liquid to a vapor at tempera ...
... which is the metal? 105. A sample of calcium contains calcium-40, calcium-44, calcium-42, calcium-48, calcium-43, and calcium-46 atoms. Explain why these atoms can have different mass numbers but must have the same atomic number. 106. Describe how water can change from a liquid to a vapor at tempera ...
BOOKLETColoring-the-Periodic-Table-Families
... he decided to leave it blank thinking that this might be a place for an element that had yet to be discovered. He could also predict the properties of the ...
... he decided to leave it blank thinking that this might be a place for an element that had yet to be discovered. He could also predict the properties of the ...
the Alkali Metals
... Affinity tends to increase across a period Affinity tends to decrease as you go down in a Group or family Electrons farther from the nucleus experience less nuclear attraction Some irregularities due to repulsive forces in the relatively small p orbitals ...
... Affinity tends to increase across a period Affinity tends to decrease as you go down in a Group or family Electrons farther from the nucleus experience less nuclear attraction Some irregularities due to repulsive forces in the relatively small p orbitals ...
The Periodic Table
... • An airship is a buoyant aircraft that can be steered and propelled through the air. Unlike aerodynamic craft (e.g. airplanes and helicopters) which stay aloft by moving an airfoil through the air in order to produce lift, aerostatic craft such as airships (and balloons) stay aloft primarily by me ...
... • An airship is a buoyant aircraft that can be steered and propelled through the air. Unlike aerodynamic craft (e.g. airplanes and helicopters) which stay aloft by moving an airfoil through the air in order to produce lift, aerostatic craft such as airships (and balloons) stay aloft primarily by me ...
Isotopes and the Electron Configuration of the Blocks in the Periodic
... because the elements consists of, as regularly, a mix of inborn (native) isotopes. For this reason we conclude that the average weighted atomic mass of all stable isotopes of any element (taking their distribution in the Earth crust) is that atomic mass which is used in all calculations. Because it ...
... because the elements consists of, as regularly, a mix of inborn (native) isotopes. For this reason we conclude that the average weighted atomic mass of all stable isotopes of any element (taking their distribution in the Earth crust) is that atomic mass which is used in all calculations. Because it ...
Students should be able to describe
... Part 1) A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes 1) Atoms, elements and compounds All substances are made of atoms. An atom is the smallest part of an element that can exist. Atoms of each element are represented by a chemical symbol, e.g. O represent ...
... Part 1) A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes 1) Atoms, elements and compounds All substances are made of atoms. An atom is the smallest part of an element that can exist. Atoms of each element are represented by a chemical symbol, e.g. O represent ...
The Periodic Table
... • Not all elements known, so some spaces left blank • Accurately predicted properties of elements not yet discovered ...
... • Not all elements known, so some spaces left blank • Accurately predicted properties of elements not yet discovered ...
File - Miss Cummings
... Unit Four: The Periodic Table History of the Periodic Table Dmitri Mendeleev is considered the Father of the Periodic Table. He arranged elements by increasing atomic mass and predicted the properties of missing elements. Henry Moseley discovered that each element has a unique atomic number and arra ...
... Unit Four: The Periodic Table History of the Periodic Table Dmitri Mendeleev is considered the Father of the Periodic Table. He arranged elements by increasing atomic mass and predicted the properties of missing elements. Henry Moseley discovered that each element has a unique atomic number and arra ...
10.2 – District 2: Periodic Table and Trends Key Points Notes The
... The Periodic Table is arranged by increasing __________________________ Fill in the following table: Group Group Number Common Properties Alkali Metals Transition Metals Alkaline Earth Metals Halogens Noble Gases List the common properties of metals: ...
... The Periodic Table is arranged by increasing __________________________ Fill in the following table: Group Group Number Common Properties Alkali Metals Transition Metals Alkaline Earth Metals Halogens Noble Gases List the common properties of metals: ...
PERIODIC TRENDS PRACTICE QUIZ
... 10. The measure of the attraction that an atom has for electrons involved in chemical bonds is known as a. Radioactivity. b. Ionization Energy. c. Electronegativity. d. Electron Affinity. ...
... 10. The measure of the attraction that an atom has for electrons involved in chemical bonds is known as a. Radioactivity. b. Ionization Energy. c. Electronegativity. d. Electron Affinity. ...
Atomic Number - Mrs. McGee`s Class
... • Noble Gases are colorless gases that are extremely un-reactive. • One important property of the noble gases is their inactivity. They • are inactive because their outermost energy level is full. • Because they do not readily combine with other elements to form compounds, the noble gases are called ...
... • Noble Gases are colorless gases that are extremely un-reactive. • One important property of the noble gases is their inactivity. They • are inactive because their outermost energy level is full. • Because they do not readily combine with other elements to form compounds, the noble gases are called ...
PERIODIC TRENDS PRACTICE QUIZ
... 10. The measure of the attraction that an atom has for electrons involved in chemical bonds is known as a. Radioactivity. b. Ionization Energy. c. Electronegativity. d. Electron Affinity. ...
... 10. The measure of the attraction that an atom has for electrons involved in chemical bonds is known as a. Radioactivity. b. Ionization Energy. c. Electronegativity. d. Electron Affinity. ...
Test review
... 16. group of elements on the periodic table that have properties of the elements an outer electron configuration of s2p5 and form 110. elements that have properties in between metals ions when stable and nonmetals 18. is the effect that inner energy levels have by 13. (two words) group of elements o ...
... 16. group of elements on the periodic table that have properties of the elements an outer electron configuration of s2p5 and form 110. elements that have properties in between metals ions when stable and nonmetals 18. is the effect that inner energy levels have by 13. (two words) group of elements o ...
PERIODIC TABLE
... is added to the p-orbital until it is filled with six electrons. The noble gases exhibit great stability because both their s- and p-orbitals are filled. 3. The d-block contains the transition elements and it is the largest of the blocks. These elements are characterized by a filled outermost s-orbi ...
... is added to the p-orbital until it is filled with six electrons. The noble gases exhibit great stability because both their s- and p-orbitals are filled. 3. The d-block contains the transition elements and it is the largest of the blocks. These elements are characterized by a filled outermost s-orbi ...
Unit 2 Outline
... Horizontal rows called periods have predictable properties based on an increasing number of electrons in the outer orbitals. Vertical columns called groups have similar properties because of their similar valence electron configurations. ...
... Horizontal rows called periods have predictable properties based on an increasing number of electrons in the outer orbitals. Vertical columns called groups have similar properties because of their similar valence electron configurations. ...
Chemistry Study Cards Chapter 5 (3-2) The length of each period in
... In a row in the periodic table, as the atomic number increases, the atomic radius generally Within a group of elements, as the atomic number increases, the atomic radius ...
... In a row in the periodic table, as the atomic number increases, the atomic radius generally Within a group of elements, as the atomic number increases, the atomic radius ...
(periods) to
... • The table is a visual representation of the periodic law which states that certain properties of elements repeat periodically when arranged by atomic number. • In the standard periodic table, the elements are listed in order of increasing atomic number (the number of protons in the nucleus of an ...
... • The table is a visual representation of the periodic law which states that certain properties of elements repeat periodically when arranged by atomic number. • In the standard periodic table, the elements are listed in order of increasing atomic number (the number of protons in the nucleus of an ...
Group 3 element
Group 3 is a group of elements in the periodic table. This group, like other d-block groups, should contain four elements, but it is not agreed what elements belong in the group. Scandium (Sc) and yttrium (Y) are always included, but the other two spaces are usually occupied by lanthanum (La) and actinium (Ac), or by lutetium (Lu) and lawrencium (Lr); less frequently, it is considered the group should be expanded to 32 elements (with all the lanthanides and actinides included) or contracted to contain only scandium and yttrium. The group itself has not acquired a trivial name; however, scandium, yttrium and the lanthanides are sometimes called rare earth metals.Three group 3 elements occur naturally, scandium, yttrium, and either lanthanum or lutetium. Lanthanum continues the trend started by two lighter members in general chemical behavior, while lutetium behaves more similarly to yttrium. This is in accordance with the trend for period 6 transition metals to behave more similarly to their upper periodic table neighbors. This trend is seen from hafnium, which is almost identical chemically to zirconium, to mercury, which is quite distant chemically from cadmium, but still shares with it almost equal atomic size and other similar properties. They all are silvery-white metals under standard conditions. The fourth element, either actinium or lawrencium, has only radioactive isotopes. Actinium, which occurs only in trace amounts, continues the trend in chemical behavior for metals that form tripositive ions with a noble gas configuration; synthetic lawrencium is calculated and partially shown to be more similar to lutetium and yttrium. So far, no experiments have been conducted to synthesize any element that could be the next group 3 element. Unbiunium (Ubu), which could be considered a group 3 element if preceded by lanthanum and actinium, might be synthesized in the near future, it being only three spaces away from the current heaviest element known, ununoctium.