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... The periodic table of elements presents three different ways to classify elements. o __________________________________________________ based on their states at room temperature  Typically represented by different colors on the periodic table o Naturally occurring vs synthetic  All but two element ...
Summary of the Periodic Table of Elements: 1. Elements in the same
Summary of the Periodic Table of Elements: 1. Elements in the same

... Elements in the same family have similar properties. Elements towards the left are metals. Elements towards the right are nonmetals. Metalloids are found on either side of the zig-zag line. Certain properties of elements vary in regular ways from left to right. a. Electron configuration b. Reactivit ...
Chemical changes
Chemical changes

... Special types of physical changes where any object changes state, such as when water freezes or evaporates, are sometimes called change of state operations. ...
Metals
Metals

... • Most are silver in color • Somewhat reactive • These are most metals you are familiar with • iron, gold, copper, zinc and nickel • Since they are not that reactive they have more everyday uses. ...
Powerpoint for Periodicity and Density
Powerpoint for Periodicity and Density

... allows us to predict oxidation numbers for elements.  Oxidation numbers represent the charge an ion obtains after losing or gaining valence electrons. ...
Periodicity PPt
Periodicity PPt

... allows us to predict oxidation numbers for elements.  Oxidation numbers represent the charge an ion obtains after losing or gaining valence electrons. ...
Chemistry@YIA – additional information
Chemistry@YIA – additional information

... 3. Write the symbols together; remove the charges and put a subscript number to show how many ion are present (if there’s only 1, you don’t need to write 1): AlBr3 4. The ratio within a formula is fixed. The subscript numbers cannot be altered when balancing equations. Practice 1 ...
Chemical Reactions
Chemical Reactions

... Burning butane in a cigarette lighter Burning gas in a gas hob Reacting an acid and alkali together Burning magnesium Rotting compost etc etc © Boardworks Ltd 2003 ...
8.3 Metals - slider-chemistry-11
8.3 Metals - slider-chemistry-11

... History of the Periodic Table William Ramsay 1894 Discovered the Noble Gases. In 1894Ramsay removed oxygen, nitrogen, water and carbon dioxide from a sample of air and was left with a gas 19 times heavier than hydrogen, very unreactive and with an unknown emission spectrum. He called this gas Argon ...
Slider Metals - slider-chemistry-11
Slider Metals - slider-chemistry-11

... History of the Periodic Table William Ramsay 1894 Discovered the Noble Gases. In 1894Ramsay removed oxygen, nitrogen, water and carbon dioxide from a sample of air and was left with a gas 19 times heavier than hydrogen, very unreactive and with an unknown emission spectrum. He called this gas Argon ...
Slider Metals - slider-chemistry-11
Slider Metals - slider-chemistry-11

... History of the Periodic Table William Ramsay 1894 Discovered the Noble Gases. In 1894Ramsay removed oxygen, nitrogen, water and carbon dioxide from a sample of air and was left with a gas 19 times heavier than hydrogen, very unreactive and with an unknown emission spectrum. He called this gas Argon ...
What is a mineral? - The Science Queen
What is a mineral? - The Science Queen

... Fascinating Fact BACKGROUND: Scientists have identified over 2000 different minerals in the earth's crust. 95% of the earth's crust is composed of about a dozen different rock-forming minerals. ...
Periodic Table and Trends
Periodic Table and Trends

... Defined by an atoms tendency to attract electrons in a chemical bond. In a chemical bond, atoms have to share electrons The atom with a higher electronegativity will keep the electrons closer to it. ...
power point
power point

... atoms reactivity? Reactivity depends on # of Protons, The distance from the nucleus and Electron shielding Moving towards Fluorine on the table, protons increase. This means greater attraction to eand grabbing free or weakly held e-. Moving towards Francium the E- shells ...
Unit 6 Review Packet - Old Saybrook Public Schools
Unit 6 Review Packet - Old Saybrook Public Schools

... 6. The person in #8 ACROSS arranged the elements in order of increasing _______________ ________________ and similar properties. 8. _________________________ arranged the first usable Periodic Table in 1869. 9. As atomic numbers of the elements increase in a group, atomic radius _______________. ...
AP_chemistry_Summer_Assignment_2014
AP_chemistry_Summer_Assignment_2014

... 31.An extensive property is one that depends on the amount of the sample. Which of the following properties are extensive? a. volume b. density c. temperature d. energy e. melting point. F. pressure 32.A hydrated compound has an analysis of 18.29% Ca, 32.37% Cl, and 49.34% water. What is its formula ...
Full Chapter - CPO Science
Full Chapter - CPO Science

...  Remember, the atomic number is the number of protons all atoms of that element have in their nuclei. If the atom is neutral, it will have the same number of electrons as protons. ...
Periodic Table - Marian High School
Periodic Table - Marian High School

...  Remember, the atomic number is the number of protons all atoms of that element have in their nuclei. If the atom is neutral, it will have the same number of electrons as protons. ...
The Periodic Table
The Periodic Table

... (hint: look in the fourth and the sixth periods ) 6. Name three elements which are found in more than one form. _____ _____ _____ 7. Name two metals which are not silver in colour. ___________ ___________ 8. Which element is used in the manufacture of light bulbs? __________ 9. Which is the only liq ...
Document
Document

... are highly electropositive giving +1 ions. Because of the very high second ionisation energies of these elements, their oxidation state in compounds never exceeds +1. On the other hand , alkaline earth metals are in general less reactive than alkali metals. This is because of their relatively high i ...
The production and use of metals
The production and use of metals

... to supply oxygen ...
Ch. 13 Notes---Electrons in Atoms
Ch. 13 Notes---Electrons in Atoms

... tend to __________ e-’s anyway, and this makes them highly ________________ attracted to e-’s when forming a chemical bond. Noble __________ gases – ___________ are not listed in Figure 12.4 since they do not ________ form _____________ compounds ! ...
Honors Chapter 6 Powerpoint
Honors Chapter 6 Powerpoint

...  2. An alkali metal would have in the highest occupied energy level a) an s2 electron. b) an s1 electron. c) p2 electrons. d) p6 electrons. ...
Chapter 3: Atoms & the Periodic Table
Chapter 3: Atoms & the Periodic Table

... • These are the most reactive metals since they only have 1 valence electron • In nature, these are never found as elements--exist only as compounds ...
periods
periods

... Dmitri ___ created the first periodic table of elements based upon the atomic mass of the elements - he was able to use this to make predictions about the behavior of elements. ...
< 1 ... 28 29 30 31 32 33 34 35 36 ... 65 >

Alkaline earth metal

The alkaline earth metals are six chemical elements in column (group) 2 of the Periodic table. They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). They have very similar properties: they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure.Structurally, they have in common an outer s- electron shell which is full;. that is, this orbital contains its full complement of two electrons, which these elements readily lose to form cations with charge +2, and an oxidation state (oxidation number) of +2.All the discovered alkaline earth metals occur in nature. Experiments have been conducted to attempt the synthesis of element 120, the next potential member of the group, but they have all met with failure.
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