ATOMS, MOLECULES and IONS
... The positive charge (the number of protons) on the nucleus is the Atomic Number of that atom, Z. (This is the number above the element on the Periodic Table.) A sample of any given ELEMENT is comprised of many atoms, all of which have the same atomic number; in Carbon, every atom has 6 e - and a nuc ...
... The positive charge (the number of protons) on the nucleus is the Atomic Number of that atom, Z. (This is the number above the element on the Periodic Table.) A sample of any given ELEMENT is comprised of many atoms, all of which have the same atomic number; in Carbon, every atom has 6 e - and a nuc ...
Atomic Structure
... Matter is composed of very small particles called atoms. Atoms are indivisible and cannot be created or destroyed.* ...
... Matter is composed of very small particles called atoms. Atoms are indivisible and cannot be created or destroyed.* ...
Metric Unit – Chapter 1
... Distinguishing Elements and Compounds: Element = the ___________________________________________________ _______________________________________________________________ Oxygen and hydrogen are 2 of the more than 100 known elements. Compound = a substance that contains _____________________________ ...
... Distinguishing Elements and Compounds: Element = the ___________________________________________________ _______________________________________________________________ Oxygen and hydrogen are 2 of the more than 100 known elements. Compound = a substance that contains _____________________________ ...
Chapter 6: Chemistry in Biology
... An __________ is a pure substance that cannot be broken down into other substances by physical or chemical means. ...
... An __________ is a pure substance that cannot be broken down into other substances by physical or chemical means. ...
Matter Unit Study Guide Phases of Matter
... Chemical formulas for used to show the different elements that make up a compound. The letters tell you which elements are in the compound. The numbers tell you how many atoms of each element are in one molecule of the compound. Complete the chart with the element name and number of atoms for each e ...
... Chemical formulas for used to show the different elements that make up a compound. The letters tell you which elements are in the compound. The numbers tell you how many atoms of each element are in one molecule of the compound. Complete the chart with the element name and number of atoms for each e ...
Exam Review – Part 1
... • To obtain the formula of a binary compound with one metal and one non-metal: E.g. Magnesium Iodide • a. Write the symbol for each element, putting the metal atom first. ...
... • To obtain the formula of a binary compound with one metal and one non-metal: E.g. Magnesium Iodide • a. Write the symbol for each element, putting the metal atom first. ...
File
... Chemical symbols are abbreviations used to represent over 100 known elements. Chemical symbols use one or two letters. The first letter is always capitalized and the second, if there is one, is always lowercase. Usually these are the first two letters of the element's name but this is not always pos ...
... Chemical symbols are abbreviations used to represent over 100 known elements. Chemical symbols use one or two letters. The first letter is always capitalized and the second, if there is one, is always lowercase. Usually these are the first two letters of the element's name but this is not always pos ...
Atoms, Molecules, and Ions C Kapler ` , , I 27 O//#W SELF
... carbon disulfide aluminum carbonate perchloric acid ammonium permanganate cobalt(ll) sulfide calcium hydride ammonia dinitrogen tetraoxide hydroiodic acid magnesium hypobromite 6. Write the names of the following compounds: Na2Cr2O7 P4Oio Fe2(S04)3 Na2Se Ca(HC03)2 ...
... carbon disulfide aluminum carbonate perchloric acid ammonium permanganate cobalt(ll) sulfide calcium hydride ammonia dinitrogen tetraoxide hydroiodic acid magnesium hypobromite 6. Write the names of the following compounds: Na2Cr2O7 P4Oio Fe2(S04)3 Na2Se Ca(HC03)2 ...
Midterm Review File
... 19. Answer the following questions about the periodic table. a. Explain why noble gases are inert and do not form ions. b. Identify the name of the group that contains the element fluorine _______________ c. Give the name of the element in the alkali group that has the greatest electron affinity ___ ...
... 19. Answer the following questions about the periodic table. a. Explain why noble gases are inert and do not form ions. b. Identify the name of the group that contains the element fluorine _______________ c. Give the name of the element in the alkali group that has the greatest electron affinity ___ ...
Integrated Science 3
... 12. Use Lewis dot to show the formation of covalent bonds in the following compounds, atoms or ions: a) Mg b) OHc) HF d) PO43e) CO2 13. Sodium chloride, NaCl is bonded ionically. Chlorine gas, Cl2 is bonded covalently. Explain why there is a difference in the bonding in these two molecules. 14. TEMP ...
... 12. Use Lewis dot to show the formation of covalent bonds in the following compounds, atoms or ions: a) Mg b) OHc) HF d) PO43e) CO2 13. Sodium chloride, NaCl is bonded ionically. Chlorine gas, Cl2 is bonded covalently. Explain why there is a difference in the bonding in these two molecules. 14. TEMP ...
Zn + HCl → ZnCl 2 + H2 NaOH + H3PO4 → Na3PO4 + H2O N2 +
... Start with atoms that appear only once on each side of the equation. Once those are balanced, try to balance atoms that appear in more than one species on either side of the reaction. Tip: If there is a molecule with only one type of atom (eg, O2), sometimes it helps to save that type of atom ...
... Start with atoms that appear only once on each side of the equation. Once those are balanced, try to balance atoms that appear in more than one species on either side of the reaction. Tip: If there is a molecule with only one type of atom (eg, O2), sometimes it helps to save that type of atom ...
Elementary my dear Watson review
... To find the number of neutrons, you need to round the atomic mass to the nearest whole number. Then subtract the number of protons from the atomic number and you will get the number of neutrons found in the nucleus of the atom, intermingled with the protons. ...
... To find the number of neutrons, you need to round the atomic mass to the nearest whole number. Then subtract the number of protons from the atomic number and you will get the number of neutrons found in the nucleus of the atom, intermingled with the protons. ...
Writing Chemical Formulas for Ionic Compounds
... The element or polyatomic ion with the positive oxidation number (cation) is written first. The element with the negative oxidation number (anion) goes second. Crisscross the absolute values of the oxidation numbers. ...
... The element or polyatomic ion with the positive oxidation number (cation) is written first. The element with the negative oxidation number (anion) goes second. Crisscross the absolute values of the oxidation numbers. ...
2. Chemistry of Living Things Outline
... When electrons are transferred from one atom to another, _______ atoms become electrically ____________. The atom that __________ electrons becomes ____________ charged. The atom that __________ electrons becomes ____________ charged. The ions with ___________ electrical charges are ____________ to ...
... When electrons are transferred from one atom to another, _______ atoms become electrically ____________. The atom that __________ electrons becomes ____________ charged. The atom that __________ electrons becomes ____________ charged. The ions with ___________ electrical charges are ____________ to ...
Chemistry of Living Things Outline
... There are about 100 different kinds of ________ known to scientists today. A substance made up entirely of one kind of atom is called an ____________. Ninety-two ______________ occur naturally and the others were made up in a ___________________. Elements differ from one another in their ___ ...
... There are about 100 different kinds of ________ known to scientists today. A substance made up entirely of one kind of atom is called an ____________. Ninety-two ______________ occur naturally and the others were made up in a ___________________. Elements differ from one another in their ___ ...
Chemistry Honors Unit 2 Study Guide Atomic Theory Mr. Brown Use
... ____ 3. Differentiate and recognize examples of the terms “ion” and “isotope” ____ 4. Calculate the average atomic mass of isotopes in a given problem and/or the relative abundance of an isotope. ____ 5. Understand the significance to the history of the study of chemistry by the following scientists ...
... ____ 3. Differentiate and recognize examples of the terms “ion” and “isotope” ____ 4. Calculate the average atomic mass of isotopes in a given problem and/or the relative abundance of an isotope. ____ 5. Understand the significance to the history of the study of chemistry by the following scientists ...
Exam 3 Review
... The oxidation number of a metal that exhibits variable oxidation states is designated by a Roman numeral in parentheses following the name of the complex ion or molecule. If a complex is an anion, the suffix "ate" ends the name. No suffix is used in the case of a neutral or cationic complex. Usu ...
... The oxidation number of a metal that exhibits variable oxidation states is designated by a Roman numeral in parentheses following the name of the complex ion or molecule. If a complex is an anion, the suffix "ate" ends the name. No suffix is used in the case of a neutral or cationic complex. Usu ...
Writing Chemical Equations KClO3 O2 (g) + KCl (s) Balancing
... Example2: Oxygen gas can be made by heating potassium chlorate in the presence of the catalyst manganese(IV) oxide. Potassium chloride is left as a solid residue. The equation would look like: ...
... Example2: Oxygen gas can be made by heating potassium chlorate in the presence of the catalyst manganese(IV) oxide. Potassium chloride is left as a solid residue. The equation would look like: ...
File
... 1. __________________: Atoms are smallest form of matter. 2. __________________: Electrons are located in the nucleus of an atom. 3. __________________: When two or more elements combine chemically you get a mixture. 4. __________________: The properties of elements do not change when mixtures are f ...
... 1. __________________: Atoms are smallest form of matter. 2. __________________: Electrons are located in the nucleus of an atom. 3. __________________: When two or more elements combine chemically you get a mixture. 4. __________________: The properties of elements do not change when mixtures are f ...
DALTON`S ATOMIC THEORY - 1808: Publication of Dalton`s "A New
... Matter is composed of small, chemically indivisible ATOMS ELEMENTS are kinds of matter that contain only a single kind of atom. All the atoms of an element have identical chemical properties. COMPOUNDS are kinds of matter that are composed of atoms of two or more ELEMENTS which are combined in simpl ...
... Matter is composed of small, chemically indivisible ATOMS ELEMENTS are kinds of matter that contain only a single kind of atom. All the atoms of an element have identical chemical properties. COMPOUNDS are kinds of matter that are composed of atoms of two or more ELEMENTS which are combined in simpl ...
Chapter 7: Chemical Formulas and Chemical Compounds
... f. Know ammonium, acetate, chlorate, chlorite, hypochlorite, perchlorate, cyanide, bicarb, bissulfate, hydroxide, nitrate, nitrite, carbonate, chromate, dichromate, sulfate, sulfite, and phosphate. g. See Table 2 on page 226. ...
... f. Know ammonium, acetate, chlorate, chlorite, hypochlorite, perchlorate, cyanide, bicarb, bissulfate, hydroxide, nitrate, nitrite, carbonate, chromate, dichromate, sulfate, sulfite, and phosphate. g. See Table 2 on page 226. ...