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Chapter 7
... • Atoms tend to accept electrons into their highest occupied energy levels to become anions. – e- + Cl → Cl– e- + F → F- ...
... • Atoms tend to accept electrons into their highest occupied energy levels to become anions. – e- + Cl → Cl– e- + F → F- ...
Element - the simplest form of matter that can exist under normal
... Academic Chemistry Mr. Gensits Class Notes 10/6/2009 Elements, Compounds, and Chemical Changes Element - the simplest form of matter that can exist under normal laboratory conditions Elements are pure substances. Elements cannot be separated into simpler substances by chemical means. Elements are th ...
... Academic Chemistry Mr. Gensits Class Notes 10/6/2009 Elements, Compounds, and Chemical Changes Element - the simplest form of matter that can exist under normal laboratory conditions Elements are pure substances. Elements cannot be separated into simpler substances by chemical means. Elements are th ...
atomic number - geraldinescience
... • The number of protons in the nucleus of an atom is called the atomic number. • All atoms of any given element have the same atomic number. An element’s atomic number sets the atoms of that element apart from the atoms of all other elements. • Elements on the periodic table are ordered according to ...
... • The number of protons in the nucleus of an atom is called the atomic number. • All atoms of any given element have the same atomic number. An element’s atomic number sets the atoms of that element apart from the atoms of all other elements. • Elements on the periodic table are ordered according to ...
Chemistry I – Fall 2004
... (A) KCl (B) NH4Cl (C) CCl4 (D) CO2 14. Covalent bonds are most likely to be found in the compound represented by the formula (A) NaCl (B) KBr (C) CH4 (D) HI E) CaF2 15. A pure substance melts at 113 °C and does not conduct electricity in either the solid or liquid state. What conclusions can be draw ...
... (A) KCl (B) NH4Cl (C) CCl4 (D) CO2 14. Covalent bonds are most likely to be found in the compound represented by the formula (A) NaCl (B) KBr (C) CH4 (D) HI E) CaF2 15. A pure substance melts at 113 °C and does not conduct electricity in either the solid or liquid state. What conclusions can be draw ...
Chapter Outline • Review of Atomic Structure Electrons, protons
... (non-metallic) atoms from the right that are happy to get one or a few electrons to acquire stable or noble gas electron configuration. As a result of this transfer mutual ionization occurs: atom that gives up electron(s) becomes positively charged ion (cation), atom that accepts electron(s) becomes ...
... (non-metallic) atoms from the right that are happy to get one or a few electrons to acquire stable or noble gas electron configuration. As a result of this transfer mutual ionization occurs: atom that gives up electron(s) becomes positively charged ion (cation), atom that accepts electron(s) becomes ...
國立屏東教育大學95學年度研究所碩士班入學考試
... 1. If matter is uniform throughout, cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a (an) __________. (A) heterogeneous mixture (B) element (C) homogeneous mixture (D) compound (E) mixture of elements 2 ...
... 1. If matter is uniform throughout, cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a (an) __________. (A) heterogeneous mixture (B) element (C) homogeneous mixture (D) compound (E) mixture of elements 2 ...
CHM 50 Exam 1 Review Name Due Tuesday 9/29/09 Exam 1 will
... 2. An isotope of iodine has a mass number that is 10 less than two-third the mass number of an isotope of thalium. The total mass number of the two isotope is 340. What is the mass number of each isotope? (hint : there are two equations and two unknown) 3. Bromine is composed of 50.5% 79Br and 49.5% ...
... 2. An isotope of iodine has a mass number that is 10 less than two-third the mass number of an isotope of thalium. The total mass number of the two isotope is 340. What is the mass number of each isotope? (hint : there are two equations and two unknown) 3. Bromine is composed of 50.5% 79Br and 49.5% ...
Communicating Research to the General Public
... role in the discovery of a new compounds. XRD and the subsequent data analysis is used to identify the molecular structure of a crystalline material. XRD relies on the atoms in a molecule to diffract incident X-ray beams. Measuring the angles and intensities of the diffracted beams allows you to det ...
... role in the discovery of a new compounds. XRD and the subsequent data analysis is used to identify the molecular structure of a crystalline material. XRD relies on the atoms in a molecule to diffract incident X-ray beams. Measuring the angles and intensities of the diffracted beams allows you to det ...
Preview Sample 1
... D) are always some form of carbohydrate. E) are naturally similar to sugars. 102) Alaska Natives have a lower incidence of heart disease even though their diets are high in fat and cholesterol. This may be due to the large amount of ________ in their diets. A) steroids B) omega-3 fatty acids C) trig ...
... D) are always some form of carbohydrate. E) are naturally similar to sugars. 102) Alaska Natives have a lower incidence of heart disease even though their diets are high in fat and cholesterol. This may be due to the large amount of ________ in their diets. A) steroids B) omega-3 fatty acids C) trig ...
Bio_130_files/Chemistry Review
... • One atom has a greater electronegativity. – This atom will have stronger pull on the shared electrons – The shared electrons spend more time closer to the nucleus of electronegative atom. – The addition of the shared electrons makes the electronegative atom partially negative charged, while the at ...
... • One atom has a greater electronegativity. – This atom will have stronger pull on the shared electrons – The shared electrons spend more time closer to the nucleus of electronegative atom. – The addition of the shared electrons makes the electronegative atom partially negative charged, while the at ...
Bio_130_files/Chemistry Review
... • A substance that is composed of only one type of atom is called an element. – Elements are the simplest form of matter with unique chemical properties. They are charted on the periodic table based on some of their chemical characteristics. • There are 24 major elements that have various roles in t ...
... • A substance that is composed of only one type of atom is called an element. – Elements are the simplest form of matter with unique chemical properties. They are charted on the periodic table based on some of their chemical characteristics. • There are 24 major elements that have various roles in t ...
Snc2d Chapter 5 Practice Test
... 10. a) What is a “diatomic element”? b) Write the formulas for ALL the diatomic elements. 11. NEATLY Fill in the chart below with the correct name or formula. Correct spelling is essential. formula name ...
... 10. a) What is a “diatomic element”? b) Write the formulas for ALL the diatomic elements. 11. NEATLY Fill in the chart below with the correct name or formula. Correct spelling is essential. formula name ...
atom a very small particle that makes up most kinds of matters and
... a description of a chemical reaction written with chemical formulas, subscripts and coefficients characteristic that can NOT be observed without altering the sample - it also determines how a substance will react with another substance ...
... a description of a chemical reaction written with chemical formulas, subscripts and coefficients characteristic that can NOT be observed without altering the sample - it also determines how a substance will react with another substance ...
II. Masses of Atoms
... FORCES IN THE NUCLEUS • WHEN TWO PROTONS ARE EXTREMELY CLOSE TO EACH OTHER, THERE IS A STRONG ATTRACTION BETWEEN THEM. • A SIMILAR ATTRACTION EXISTS WHEN NEUTRONS ARE VERY CLOSE TO EACH OTHER OR WHEN PROTONS AND NEUTRONS ARE VERY CLOSE TOGETHER. • THE SHORT-RANGE PROTON-NEUTRON, PROTON-PROTON, AND N ...
... FORCES IN THE NUCLEUS • WHEN TWO PROTONS ARE EXTREMELY CLOSE TO EACH OTHER, THERE IS A STRONG ATTRACTION BETWEEN THEM. • A SIMILAR ATTRACTION EXISTS WHEN NEUTRONS ARE VERY CLOSE TO EACH OTHER OR WHEN PROTONS AND NEUTRONS ARE VERY CLOSE TOGETHER. • THE SHORT-RANGE PROTON-NEUTRON, PROTON-PROTON, AND N ...
Chemistry DCA Review Sheet
... 13. Label the following on the Periodic Table: periods, groups (families), metals, non-metals, metalloids, where protons and protons + neutrons can be found. ...
... 13. Label the following on the Periodic Table: periods, groups (families), metals, non-metals, metalloids, where protons and protons + neutrons can be found. ...
Balancing a Chemical Equation
... way to balance O with a whole number, double all the coefficients and try again. (Because O is diatomic as an element) (Shortcut) Polyatomic ions that appear on both sides of the equation should be balanced as independent units ...
... way to balance O with a whole number, double all the coefficients and try again. (Because O is diatomic as an element) (Shortcut) Polyatomic ions that appear on both sides of the equation should be balanced as independent units ...
Dmitri Mendeleev
... Every element wants to be like the noble gases wants 0 or 8 valence electrons valence e- (outer electron shell used for bonding) ...
... Every element wants to be like the noble gases wants 0 or 8 valence electrons valence e- (outer electron shell used for bonding) ...
can be determined without changing the identity of matter
... - CANNOT be separated into different materials by PHYSICAL PROCESSES Examples: Table salt, gold, silver, nitrogen, oxygen, carbon, hydrochloric acid, carbon dioxide, ethanol (grain alcohol), water, silicon dioxide ...
... - CANNOT be separated into different materials by PHYSICAL PROCESSES Examples: Table salt, gold, silver, nitrogen, oxygen, carbon, hydrochloric acid, carbon dioxide, ethanol (grain alcohol), water, silicon dioxide ...
Introduction to Chemistry and Measurement
... gold, aluminum, lead, oxygen, carbon • 34 elements have been created by scientists ...
... gold, aluminum, lead, oxygen, carbon • 34 elements have been created by scientists ...
6.7 – Ionic Compounds
... Example: What are the names for K3N, NaBr, and CaS? K3N is potassium nitride, NaBr is sodium bromide, and CaS is calcium sulfide. ...
... Example: What are the names for K3N, NaBr, and CaS? K3N is potassium nitride, NaBr is sodium bromide, and CaS is calcium sulfide. ...
S3 Chemistry - eduBuzz.org
... 12. Metal hydroxides, metal oxides and metal carbonates are all bases that can neutralise an acid. ...
... 12. Metal hydroxides, metal oxides and metal carbonates are all bases that can neutralise an acid. ...
Summaries of Review Topics for AP Chemistry
... N2O3 dinitrogen trioxide (a binary covalent compound; use prefixes) Examples of using the IUPAC nomenclature to names covalent compounds Examples: nitric acid (nitric came from nitrate, NO3-) HNO3 Diphosphorus trioxide P2O3 (use Rule #2 above page to write a formula of this binary covalent ...
... N2O3 dinitrogen trioxide (a binary covalent compound; use prefixes) Examples of using the IUPAC nomenclature to names covalent compounds Examples: nitric acid (nitric came from nitrate, NO3-) HNO3 Diphosphorus trioxide P2O3 (use Rule #2 above page to write a formula of this binary covalent ...
Review Packet
... _____ 126. In Figure 6-3, what is the charge on the ion that would most readily be formed by sulfur? a. ...
... _____ 126. In Figure 6-3, what is the charge on the ion that would most readily be formed by sulfur? a. ...