Elements Elements (cont.) Elements (cont.)
... have positive particles to balance the charge and make the atom electrically neutral • Assume “Plum Pudding Model” electrons suspended in a positively ...
... have positive particles to balance the charge and make the atom electrically neutral • Assume “Plum Pudding Model” electrons suspended in a positively ...
The Chemical Earth (8.2.3)
... Electron Shells (contd.) • The lowest energy level is the “K” shell, it is the nearest to the nucleus. Electrostatic attraction at this level is greatest for the electrons. • As we move away from the nucleus into higher energy levels, nuclear attraction becomes less. (See “Atomic Size” power point ...
... Electron Shells (contd.) • The lowest energy level is the “K” shell, it is the nearest to the nucleus. Electrostatic attraction at this level is greatest for the electrons. • As we move away from the nucleus into higher energy levels, nuclear attraction becomes less. (See “Atomic Size” power point ...
Chapter 3
... • Atoms- the smallest particles that make up all matter – Protons(+): positively charged particles found in the nucleus of an atom – Neutrons(o): neutral particles found in the nucleus of an atom – Electrons(-): negatively charged particles found outside of the nucleus ...
... • Atoms- the smallest particles that make up all matter – Protons(+): positively charged particles found in the nucleus of an atom – Neutrons(o): neutral particles found in the nucleus of an atom – Electrons(-): negatively charged particles found outside of the nucleus ...
Chapter 2 cont’
... however, many reactions involve transferring electrons from one atom to another ...
... however, many reactions involve transferring electrons from one atom to another ...
lecture_CH1-2review_chem121pikul
... Distinguish the difference between chemical and physical properties & changes We represent uncertainty with significant figures You do not need to memorize Sig Fig rules Scientific Notation Conversions within the metric system and non metric units Temperature conversions Density & Spec ...
... Distinguish the difference between chemical and physical properties & changes We represent uncertainty with significant figures You do not need to memorize Sig Fig rules Scientific Notation Conversions within the metric system and non metric units Temperature conversions Density & Spec ...
CHEMISTRY VOCABULARY
... IONIC COMPOUNDS are formed between metals and non metals. The metals lose electrons and non metals gain them to get full shells. COVALENT COMPOUNDS are formed between non metals, bonds contain shared pairs of electrons. If you know something about SALT (sodium chloride) you know something about IONI ...
... IONIC COMPOUNDS are formed between metals and non metals. The metals lose electrons and non metals gain them to get full shells. COVALENT COMPOUNDS are formed between non metals, bonds contain shared pairs of electrons. If you know something about SALT (sodium chloride) you know something about IONI ...
4. bonding - New Hartford Central Schools
... Elements with more than one positive oxidation number (Transition Metals) (This is called the Stock System) When the oxidation number varies we us a Roman numeral in parentheses to indicate the charge. Roman number is used for the positive element only!!! ...
... Elements with more than one positive oxidation number (Transition Metals) (This is called the Stock System) When the oxidation number varies we us a Roman numeral in parentheses to indicate the charge. Roman number is used for the positive element only!!! ...
Chapter 4 Chemical Foundations: Elements, Atoms, and Ions
... • Compound must have no total charge, therefore we must balance the numbers of cations and anions in a compound to get 0 total charge(總電荷). ...
... • Compound must have no total charge, therefore we must balance the numbers of cations and anions in a compound to get 0 total charge(總電荷). ...
Final Exam Review
... 30. Identify each property below as more characteristic of a metal or a nonmetal. A. a gas at room temperature B. brittle C. malleable D. poor conductor of electric current E. shiny 31. In general, how are metalloids different from metals and nonmetals? 51. In which pair of elements are the chemical ...
... 30. Identify each property below as more characteristic of a metal or a nonmetal. A. a gas at room temperature B. brittle C. malleable D. poor conductor of electric current E. shiny 31. In general, how are metalloids different from metals and nonmetals? 51. In which pair of elements are the chemical ...
power point notes
... positively charged nucleus surrounded by a cloud of negatively charged electrons. The nucleus contains almost all of the mass of the atom and consists of protons and neutrons. The number of electrons surrounding the nucleus, equals the number of protons so as to make the atom neutral. ...
... positively charged nucleus surrounded by a cloud of negatively charged electrons. The nucleus contains almost all of the mass of the atom and consists of protons and neutrons. The number of electrons surrounding the nucleus, equals the number of protons so as to make the atom neutral. ...
Dr. Harris Chemistry 105 Practice Exam 1 Isotope Atomic Number
... c.) Refer to the table of ionization energies in Ch 4 of your book, as well as the table of electron affinities shown on the right. Assume the radii of Mg2+ and O2- to be 130 pm and 200 pm, respectively. Calculate the energy change associated with the formation of MgO . ...
... c.) Refer to the table of ionization energies in Ch 4 of your book, as well as the table of electron affinities shown on the right. Assume the radii of Mg2+ and O2- to be 130 pm and 200 pm, respectively. Calculate the energy change associated with the formation of MgO . ...
Chemistry Study Guide
... 6. What kind of bond is NaCl? Ionic CO2 Covalent N2 Covalent 7. Which group forms acids with H+ ion? Halogens (Group 17) 8. How many valence electrons are in a Group 1 element? 1 Group 13? 3 9. How do positive and negative ions form? Positive ions form when an atom loses an electron, negative ions f ...
... 6. What kind of bond is NaCl? Ionic CO2 Covalent N2 Covalent 7. Which group forms acids with H+ ion? Halogens (Group 17) 8. How many valence electrons are in a Group 1 element? 1 Group 13? 3 9. How do positive and negative ions form? Positive ions form when an atom loses an electron, negative ions f ...
Nickel 28 Ni 58.693
... Matter can be broken down into its simple parts called __________. Each element on the periodic table has its own ___________. How many elements can be found naturally? ...
... Matter can be broken down into its simple parts called __________. Each element on the periodic table has its own ___________. How many elements can be found naturally? ...
Practice Exam 2 - Department of Chemistry and Biochemistry
... A) atoms are held together by sharing electrons. B) oppositely charged ions are held together by strong electrical attractions. C) atoms of different metals form bonds. D) atoms of noble gases are held together by attractions between oppositely charged ions. E) atoms of metals form bonds to atoms of ...
... A) atoms are held together by sharing electrons. B) oppositely charged ions are held together by strong electrical attractions. C) atoms of different metals form bonds. D) atoms of noble gases are held together by attractions between oppositely charged ions. E) atoms of metals form bonds to atoms of ...
chapter2 2012 (no naming) 2014
... • When an ionic compound dissolves in water, the ions are released from each other • conductivity – the ions in a solution support the transmission of an electric current • Strong electrolytes – solutions that are very good conductors • Weak electrolytes – solutions that are poor conductors • Nonele ...
... • When an ionic compound dissolves in water, the ions are released from each other • conductivity – the ions in a solution support the transmission of an electric current • Strong electrolytes – solutions that are very good conductors • Weak electrolytes – solutions that are poor conductors • Nonele ...
Earth`s Chemistry
... tightly together in fixed positions Solids have definite shape & volume Liquids = have definite volume but not shape Liquids take the shape of the container Particles tightly packed, but move freely in relation to each other Gases = No definite shape or volume ...
... tightly together in fixed positions Solids have definite shape & volume Liquids = have definite volume but not shape Liquids take the shape of the container Particles tightly packed, but move freely in relation to each other Gases = No definite shape or volume ...
Exam 2 with Solutions - Little Dumb Doctor .Com
... 6. Which of the following sets of quantum numbers is not allowed? c. n = 2, l = 2, ml = -1, ms = +1/2 7. Which of the following elements is a d-block element? a. copper 8. Which of the following is (are) CORRECT resonance structure(s) for the formate ion? 1. H ...
... 6. Which of the following sets of quantum numbers is not allowed? c. n = 2, l = 2, ml = -1, ms = +1/2 7. Which of the following elements is a d-block element? a. copper 8. Which of the following is (are) CORRECT resonance structure(s) for the formate ion? 1. H ...
Document
... During the combustion of Acetone (C3H6O), 4.5 L of water is produced. How much Oxygen in ml is required to produce this much water Density of O = 1.308 g/L ...
... During the combustion of Acetone (C3H6O), 4.5 L of water is produced. How much Oxygen in ml is required to produce this much water Density of O = 1.308 g/L ...
Unit 2 Notes Name - Mr. Walsh`s AP Chemistry
... Molecular (Non-metal) Nomenclature: Molecular compounds (made of all non-metals) are named by describing the molecular formula, using prefixes for the numbers. o You will need to memorize the number prefixes for the numbers 1–10. o E.g., P2O5 is diphosphorus pentoxide. **Note that the prefix “mono— ...
... Molecular (Non-metal) Nomenclature: Molecular compounds (made of all non-metals) are named by describing the molecular formula, using prefixes for the numbers. o You will need to memorize the number prefixes for the numbers 1–10. o E.g., P2O5 is diphosphorus pentoxide. **Note that the prefix “mono— ...
CHAPTER 2 ATOMS, MOLECULES, AND IONS 1 CHAPTER TWO
... a. The smaller parts are electrons and the nucleus. The nucleus is broken down into protons and neutrons which can be broken down into quarks. For our purpose, electrons, neutrons, and protons are the key smaller parts of an atom. b. All atoms of hydrogen have 1 proton in the nucleus. Different isot ...
... a. The smaller parts are electrons and the nucleus. The nucleus is broken down into protons and neutrons which can be broken down into quarks. For our purpose, electrons, neutrons, and protons are the key smaller parts of an atom. b. All atoms of hydrogen have 1 proton in the nucleus. Different isot ...
ACA__Beat_sheet_bonding_2016
... Define the following trends, then identify the trend along the periodic table: ...
... Define the following trends, then identify the trend along the periodic table: ...
Synthesis of Alum Lab
... d) Alum forms from potassium ions, hydrated aluminum ions sulfate ions and water: K+(aq) + 6H2O(l) + 2SO42-(aq) + [Al(H2O)6]3+(aq) KAl(SO4)2.12H2O(s) ...
... d) Alum forms from potassium ions, hydrated aluminum ions sulfate ions and water: K+(aq) + 6H2O(l) + 2SO42-(aq) + [Al(H2O)6]3+(aq) KAl(SO4)2.12H2O(s) ...
ATOMS, MOLECULES and IONS
... Recall that an element consists of atoms which have the same number of protons, and therefore, the same Atomic Number. Chemical properties of elements depend on the atomic number of the element. A complete Periodic Table lists the elements, their symbols and atomic numbers as well as atomic masses. ...
... Recall that an element consists of atoms which have the same number of protons, and therefore, the same Atomic Number. Chemical properties of elements depend on the atomic number of the element. A complete Periodic Table lists the elements, their symbols and atomic numbers as well as atomic masses. ...
Chemistry - nyostrander.us
... 3. State the model that first included electrons as subatomic particles. [2] The Thomson model first included electrons (the negatively charged particles). _________________________________________________________________________ 4. State one conclusion about the internal structure of the atom that ...
... 3. State the model that first included electrons as subatomic particles. [2] The Thomson model first included electrons (the negatively charged particles). _________________________________________________________________________ 4. State one conclusion about the internal structure of the atom that ...
Basic Chemistry notes
... ______________________—two or more like atoms combined chemically ______________________—two or more different atoms combined chemically ...
... ______________________—two or more like atoms combined chemically ______________________—two or more different atoms combined chemically ...