Unit 3 Review - RHSChemistry
... 9. The ___________ middle of the periodic table. Properties of these elements include: 10. Transition metals are also known as the __-block elements d 11. General properties (similar to other metals) are… a.Most transition metals are _____ _____ melting points. hardsolids with high b.Transition meta ...
... 9. The ___________ middle of the periodic table. Properties of these elements include: 10. Transition metals are also known as the __-block elements d 11. General properties (similar to other metals) are… a.Most transition metals are _____ _____ melting points. hardsolids with high b.Transition meta ...
8.2 Families and Periods of the Periodic Table Lesson Objectives
... example, germanium had not been discovered when Mendeleev constructed his table. After gallium, the next known element in Mendeleev’s time was arsenic. Arsenic did not match the chemical characteristics of carbon and silicon. Instead, arsenic matched the chemical characteristics of nitrogen and phos ...
... example, germanium had not been discovered when Mendeleev constructed his table. After gallium, the next known element in Mendeleev’s time was arsenic. Arsenic did not match the chemical characteristics of carbon and silicon. Instead, arsenic matched the chemical characteristics of nitrogen and phos ...
Parts of the Periodic Table
... undiscovered elements, which allowed him to show how useful the table could be in predicting the existence and properties of unknown elements. • Problems? • Co and Ni ...
... undiscovered elements, which allowed him to show how useful the table could be in predicting the existence and properties of unknown elements. • Problems? • Co and Ni ...
PT trends
... Developed concept of arranging PT by atomic number Periodic law – there is a periodic repetition of properties when elements are arranged by atomic # ...
... Developed concept of arranging PT by atomic number Periodic law – there is a periodic repetition of properties when elements are arranged by atomic # ...
PPT format
... (1) Classic exemplar of the scientific process: Mendeleev (2) Atomic mass and atomic number as atom identifiers (3) Periodic properties along rows and down columns Electronegativity (ability of an atom to hold electrons) Chemical reactivity (kinds of reactions atoms undergo) Valence (the number of b ...
... (1) Classic exemplar of the scientific process: Mendeleev (2) Atomic mass and atomic number as atom identifiers (3) Periodic properties along rows and down columns Electronegativity (ability of an atom to hold electrons) Chemical reactivity (kinds of reactions atoms undergo) Valence (the number of b ...
File
... Elements are listed horizontally according to their atomic number - number of protons Periods are the horizontal rows of elements Halogens - highly reactive, Elements are listed vertically according to their chemical properties gases except Br liquid Groups or Families are arranged vertically Noble ...
... Elements are listed horizontally according to their atomic number - number of protons Periods are the horizontal rows of elements Halogens - highly reactive, Elements are listed vertically according to their chemical properties gases except Br liquid Groups or Families are arranged vertically Noble ...
Unit 6 Review Packet - Old Saybrook Public Schools
... 24. Outershell electrons are also called ________________________ ______________________. 26. The most active Alkali Metal is ____________________. 28. Ce (cerium) is a member of the _______________________ series. 23. Nonmetals have _____________________ ionization energies and electron affiniti ...
... 24. Outershell electrons are also called ________________________ ______________________. 26. The most active Alkali Metal is ____________________. 28. Ce (cerium) is a member of the _______________________ series. 23. Nonmetals have _____________________ ionization energies and electron affiniti ...
Sample Questions Sample Questions Standard Atomic Notation
... 17 number. The number of protons is 17, the number of electrons is 17 and the number of neutrons is 18. • 23Na 23 is the atomic mass, 11 is the atomic 11 number. The number of protons is 11, the ...
... 17 number. The number of protons is 17, the number of electrons is 17 and the number of neutrons is 18. • 23Na 23 is the atomic mass, 11 is the atomic 11 number. The number of protons is 11, the ...
Port Said International Schools
... Because when the temperature decreases than 4 c the water molecules are collected by hydrogen bonds forming large sized hexagonal crystals with many spaces between them 20. Thermal pollution is very dangerous on marine creatures. Due to separation of dissolved oxygen in water D. What is meant by: 1. ...
... Because when the temperature decreases than 4 c the water molecules are collected by hydrogen bonds forming large sized hexagonal crystals with many spaces between them 20. Thermal pollution is very dangerous on marine creatures. Due to separation of dissolved oxygen in water D. What is meant by: 1. ...
U1 Periodic Trends - Alliance Ouchi-O`Donovan 6
... 12. Are elements with similar chemical properties more likely to be found in the same period or in the same group? A: The same group because the number of valence electrons determine the chemical properties. ...
... 12. Are elements with similar chemical properties more likely to be found in the same period or in the same group? A: The same group because the number of valence electrons determine the chemical properties. ...
Document
... On descending the halogen group of the Periodic Table, the 1. attracting power for bonding electrons increases. 2. ionisation energy increases. 3. nuclear charge increases. 4. reactivity increases. ...
... On descending the halogen group of the Periodic Table, the 1. attracting power for bonding electrons increases. 2. ionisation energy increases. 3. nuclear charge increases. 4. reactivity increases. ...
- Schoolnet
... 19. The ionization potential of an element is the amount of energy required to remove an electron from an isolated atom or molecule. According to the periodic table, which of the following indicates the correct decreasing order of ionization potential? A. B. C. D. ...
... 19. The ionization potential of an element is the amount of energy required to remove an electron from an isolated atom or molecule. According to the periodic table, which of the following indicates the correct decreasing order of ionization potential? A. B. C. D. ...
Atomic
... A) The stair-step divider on the periodic table divides the elements known as the ________ from the elements known as the _________________. B) The elements that fall just to either side of the divider have properties of both metals and nonmetals and are known as ____________________. C) The rows on ...
... A) The stair-step divider on the periodic table divides the elements known as the ________ from the elements known as the _________________. B) The elements that fall just to either side of the divider have properties of both metals and nonmetals and are known as ____________________. C) The rows on ...
12.3 The Periodic Table
... Symbol and atomic mass: For each of the following, write the element name that corresponds to the symbol. In addition, write the atomic mass for each element. ...
... Symbol and atomic mass: For each of the following, write the element name that corresponds to the symbol. In addition, write the atomic mass for each element. ...
Periodic Table How did Dmitri Mendeleev arrange the periodic table?
... increases by 1 – number of protons increases by 1 – number of electrons also increases by 1 in the same valence shell ...
... increases by 1 – number of protons increases by 1 – number of electrons also increases by 1 in the same valence shell ...
Unit 3: The Periodic Table
... 1. Describe early attempts at classifying elements, including Mendeleev’s periodic table of the elements. 2. State the periodic law. 3. Identify and state the properties, including physical state, of metals, metalloids, and non-metals. 4. Distinguish between the terms groups or families and periods. ...
... 1. Describe early attempts at classifying elements, including Mendeleev’s periodic table of the elements. 2. State the periodic law. 3. Identify and state the properties, including physical state, of metals, metalloids, and non-metals. 4. Distinguish between the terms groups or families and periods. ...
Chapter 5 Organizing The Elements
... only 1 orbital so, the 1 electron in a H atom and the 2 electrons in a He atom can fit in this orbital • But Li contains 3 electrons---------so 2 can fit in the 1st orbital and the other electron has to go in the 2nd orbital(or energy level) this is why Li is the first element in Period 2 ...
... only 1 orbital so, the 1 electron in a H atom and the 2 electrons in a He atom can fit in this orbital • But Li contains 3 electrons---------so 2 can fit in the 1st orbital and the other electron has to go in the 2nd orbital(or energy level) this is why Li is the first element in Period 2 ...
Elements of Chemistry The Periodic Table ES14 - rdt-maps-lab
... • Number of protons, electrons, and neutrons • A model of an atom of that element • Number of electron shells in the atom • Number of valence electrons 4. Next, ask each group to arrange their cards in order using the following rules: • Cards must be placed in the order of their atomic number. • All ...
... • Number of protons, electrons, and neutrons • A model of an atom of that element • Number of electron shells in the atom • Number of valence electrons 4. Next, ask each group to arrange their cards in order using the following rules: • Cards must be placed in the order of their atomic number. • All ...
Key Words Isotope- Atoms with the same number of protons but
... 3. Mendeleev used the melting, point, density, color, atomic mass, and number of chemical bonds of elements to organize the periodic table. The modern Periodic Table 1. Periodic means “in a regular repeated pattern”. 2. In the periodic table elements properties repeat in each row or period. 3. Briti ...
... 3. Mendeleev used the melting, point, density, color, atomic mass, and number of chemical bonds of elements to organize the periodic table. The modern Periodic Table 1. Periodic means “in a regular repeated pattern”. 2. In the periodic table elements properties repeat in each row or period. 3. Briti ...
Periodic Table2011
... • Zinc is as hard as copper, has similar density, its readily available and less expensive than copper. • Zinc is more reactive and in the 1940s was used to make pennies and it corroded so production ended. • Post 1982 pennies are copper on the outside and zinc on the inside. ...
... • Zinc is as hard as copper, has similar density, its readily available and less expensive than copper. • Zinc is more reactive and in the 1940s was used to make pennies and it corroded so production ended. • Post 1982 pennies are copper on the outside and zinc on the inside. ...
Unit 1 Topics to Review
... Ground state means lowest energy state Elements in the same period & Periods on the Periodic Table Elements in the same group & Groups on the Periodic Table Characteristic arrows on the Periodic Table Mass Energy Levels Largest elements are found at a certain area of the periodic table. Reactivity ...
... Ground state means lowest energy state Elements in the same period & Periods on the Periodic Table Elements in the same group & Groups on the Periodic Table Characteristic arrows on the Periodic Table Mass Energy Levels Largest elements are found at a certain area of the periodic table. Reactivity ...
File - McArthur Media
... paints. • Transition elements have 1 or 2 valence electrons, which they lose when they form bonds with other atoms. ...
... paints. • Transition elements have 1 or 2 valence electrons, which they lose when they form bonds with other atoms. ...
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.