Main Group Notes 1
... The s-block metal hydrides are also very useful compounds that can usually be made by the reaction of the metal with H2(g); this does not work for BeH2 - you can use a BornHaber cycle to figure out why. The H atoms are hydrides (H-), which gives them a totally different kind of chemistry than proton ...
... The s-block metal hydrides are also very useful compounds that can usually be made by the reaction of the metal with H2(g); this does not work for BeH2 - you can use a BornHaber cycle to figure out why. The H atoms are hydrides (H-), which gives them a totally different kind of chemistry than proton ...
ELEMENTS
... - m.p. and b.p. are lower than normal metals - harder than Gp. I metals - **their surface are dull because of the presence of a layer of oxide.** Similarities of Alkaline Earth Metals Earth Metals 1. All are reactive metals. 2. All form ions with two +ve charges (e.g. Be2+, Mg2+, Ca2+ ) 3. All form ...
... - m.p. and b.p. are lower than normal metals - harder than Gp. I metals - **their surface are dull because of the presence of a layer of oxide.** Similarities of Alkaline Earth Metals Earth Metals 1. All are reactive metals. 2. All form ions with two +ve charges (e.g. Be2+, Mg2+, Ca2+ ) 3. All form ...
Ms - cloudfront.net
... 13. Which atom has a greater ionization energy, nitrogen or bismuth? 14. Which atom has a larger atomic radius, fluorine or barium? 15. Which element is more like lithium in terms of properties, sodium or beryllium? 16. Which element has more electrons in its valence shell, sodium or magnesium? 17. ...
... 13. Which atom has a greater ionization energy, nitrogen or bismuth? 14. Which atom has a larger atomic radius, fluorine or barium? 15. Which element is more like lithium in terms of properties, sodium or beryllium? 16. Which element has more electrons in its valence shell, sodium or magnesium? 17. ...
Unit 4 - The Periodic Table
... As you go down a group (column), atomic radius INCREASES The number of energy levels increases as you move down a group. Each successive energy level is further from the nucleus than the last. From Left to Right across a period (row), atomic radius DECREASES As you go Left to Right across a period, ...
... As you go down a group (column), atomic radius INCREASES The number of energy levels increases as you move down a group. Each successive energy level is further from the nucleus than the last. From Left to Right across a period (row), atomic radius DECREASES As you go Left to Right across a period, ...
Review Ch. 4 - Ralston Public Schools
... A measure of the ability of an atom to attract electrons in a chemical bond There is a repeating pattern of physical and chemical properties when the elements are organized by atomic number An electron found in the outermost energy level of an atom The reduction of the attractive force from the nucl ...
... A measure of the ability of an atom to attract electrons in a chemical bond There is a repeating pattern of physical and chemical properties when the elements are organized by atomic number An electron found in the outermost energy level of an atom The reduction of the attractive force from the nucl ...
4.IonicCompounds - Gleneaglesunit1and2chemistry2012
... – They will only conduct electricity if they are melted or dissolved in water. ...
... – They will only conduct electricity if they are melted or dissolved in water. ...
Name - TeacherWeb
... 19. An electron that is in the highest occupied energy level of an atom is a(n) valence electron. 20. Elements within a group have the same number of valence electrons. 21. The reactivity of alkali metals increase from the top of Group 1A to the bottom. 22. Differences in reactivity among alkaline e ...
... 19. An electron that is in the highest occupied energy level of an atom is a(n) valence electron. 20. Elements within a group have the same number of valence electrons. 21. The reactivity of alkali metals increase from the top of Group 1A to the bottom. 22. Differences in reactivity among alkaline e ...
Give the name and symbol for the element found in
... in rows and columns so that elements with similar properties would be located together. He left blank spaces in his periodic table where no known elements seemed to fit. He explained that these blank spaces represented elements that had not yet been discovered, and based on their position in the per ...
... in rows and columns so that elements with similar properties would be located together. He left blank spaces in his periodic table where no known elements seemed to fit. He explained that these blank spaces represented elements that had not yet been discovered, and based on their position in the per ...
The Periodic Table - Mr Linseman`s wiki
... Chemical Families: elements in the same vertical column of the periodic table that tend to have similar physical and chemical properties. The elements in a vertical column are also referred to as a group of elements. The four main Chemical Families are: Alkali metals: shiny, silvery metals that r ...
... Chemical Families: elements in the same vertical column of the periodic table that tend to have similar physical and chemical properties. The elements in a vertical column are also referred to as a group of elements. The four main Chemical Families are: Alkali metals: shiny, silvery metals that r ...
Prentice Hall Physical Science Chapter 5: The Periodic Table
... never found uncombined in nature because they are so reactive stored in oil so they don't react with air found in table salt, baking soda, and soap cesium is a liquid lose one electron reactivity increases from top to bottom Group 2 (2A)- Alkaline Earth Metals (p.141) 2 valence electrons very reacti ...
... never found uncombined in nature because they are so reactive stored in oil so they don't react with air found in table salt, baking soda, and soap cesium is a liquid lose one electron reactivity increases from top to bottom Group 2 (2A)- Alkaline Earth Metals (p.141) 2 valence electrons very reacti ...
THE PERIODIC TABLE
... of their atomic #s As you go across a period (series)—start with reactive metal solid and end with nonreactive (inert) nonmetal gas Going down a group (family)---elements have similar chemical and physical ...
... of their atomic #s As you go across a period (series)—start with reactive metal solid and end with nonreactive (inert) nonmetal gas Going down a group (family)---elements have similar chemical and physical ...
Physical Science Chapters 4
... What is a valence electron? How do you determine an element’s valence electron? What happens to valence electrons as you move across the periodic table? ...
... What is a valence electron? How do you determine an element’s valence electron? What happens to valence electrons as you move across the periodic table? ...
Chemical Equations and Reactions
... • the more an element reacts with other substances, the greater the activity is. • Metals: the greater the activity, the greater it loses electrons (to form cations) • Non-metals: the greater the activity, the greater it gains electrons (to form anions) • Activity series: a list of which elements a ...
... • the more an element reacts with other substances, the greater the activity is. • Metals: the greater the activity, the greater it loses electrons (to form cations) • Non-metals: the greater the activity, the greater it gains electrons (to form anions) • Activity series: a list of which elements a ...
The Periodic Table Worksheet
... 1. Fill in the missing words to describe the arrangement of elements in the periodic table. Refer to the table above to help you with this exercise. In 1869, Mendeleev published his arrangement of the known elements in a “periodic table”. Just over ……..…………… elements were arranged using details of t ...
... 1. Fill in the missing words to describe the arrangement of elements in the periodic table. Refer to the table above to help you with this exercise. In 1869, Mendeleev published his arrangement of the known elements in a “periodic table”. Just over ……..…………… elements were arranged using details of t ...
(periods) to
... sometimes shown as having a coordinate bond between sulfur and oxygen or they are show as having double between the sulfur and the oxygen. Both are acceptable. ...
... sometimes shown as having a coordinate bond between sulfur and oxygen or they are show as having double between the sulfur and the oxygen. Both are acceptable. ...
Period - scienceathylands
... or Ca(OH)2(s) + 2HCl(aq) CaCl2(aq) + 2H2O(l) As the products of these reactions are soluble you will see the solid oxides or hydroxides dissolve ...
... or Ca(OH)2(s) + 2HCl(aq) CaCl2(aq) + 2H2O(l) As the products of these reactions are soluble you will see the solid oxides or hydroxides dissolve ...
educator exam series
... Mathematical tables and electronic calculations may be used All working MUST be clearly shown where necessary For examiner’s use only: Questions Max. score Candidates score ...
... Mathematical tables and electronic calculations may be used All working MUST be clearly shown where necessary For examiner’s use only: Questions Max. score Candidates score ...
5.1 Structure of the Periodic Table
... Atomic Number = Proton Number Because atoms are electrically neutral, the atomic number is also the number of electrons. Atomic Number = Electron Number The mass number tells you the number of protons and neutrons in an atom. By subtracting the atomic number from the mass number, you can determine t ...
... Atomic Number = Proton Number Because atoms are electrically neutral, the atomic number is also the number of electrons. Atomic Number = Electron Number The mass number tells you the number of protons and neutrons in an atom. By subtracting the atomic number from the mass number, you can determine t ...