Test review
... _____ 40. Metals lack luster and are poor conductors of electricity. _____ 41. Nonmetals have many electrons in their outer energy levels and tend to gain electrons to become stable. _____ 42. Nonmetals tend to form negative ions by gaining electrons. _____ 43. Silicon is a semiconductor. _____ 44. ...
... _____ 40. Metals lack luster and are poor conductors of electricity. _____ 41. Nonmetals have many electrons in their outer energy levels and tend to gain electrons to become stable. _____ 42. Nonmetals tend to form negative ions by gaining electrons. _____ 43. Silicon is a semiconductor. _____ 44. ...
Chapter 5 The Periodic Law
... Each time an additional electron is move away from an atom, larger amounts of energy is required. Thus the 2nd ionization energy is higher than the 1st and so on. Low ionization energy is characteristic of a metal (metals give up electrons easily) High ionization energy is characteristic of a nonmet ...
... Each time an additional electron is move away from an atom, larger amounts of energy is required. Thus the 2nd ionization energy is higher than the 1st and so on. Low ionization energy is characteristic of a metal (metals give up electrons easily) High ionization energy is characteristic of a nonmet ...
Graphing Trends in the Periodic Table
... 2. For elements in Family IA, make a graph of atomic radius as a function of atomic number. On the same graph, use a different color to do the same for elements in Family HA. Label the graph. 3. For elements 3—20, make a graph of the energy required to remove the easiest electron as a function of at ...
... 2. For elements in Family IA, make a graph of atomic radius as a function of atomic number. On the same graph, use a different color to do the same for elements in Family HA. Label the graph. 3. For elements 3—20, make a graph of the energy required to remove the easiest electron as a function of at ...
Chapter 7 Periodic Properties of Elements - GCG-42
... solids and reactive non-metals. Each period ends with a non-reactive noble gas ...
... solids and reactive non-metals. Each period ends with a non-reactive noble gas ...
TCSS Physical Science Unit 2 – Atomic Structure Information
... the periodic table. The terms “atomic number” and “atomic mass.” Groups and Periods Song (2:48) – This song is based on the 60’s tune “Happy Together.” This song should help students remember the difference in meaning between Group Numbers and Period Numbers. Reaction (Explosion) of Alkali Metals wi ...
... the periodic table. The terms “atomic number” and “atomic mass.” Groups and Periods Song (2:48) – This song is based on the 60’s tune “Happy Together.” This song should help students remember the difference in meaning between Group Numbers and Period Numbers. Reaction (Explosion) of Alkali Metals wi ...
PERIODIC TABLE
... After all the elements had been discovered (some synthesized as well) our modern periodic table was been established ...
... After all the elements had been discovered (some synthesized as well) our modern periodic table was been established ...
Cracking the code!
... In the middle of an atom is a very small ................................................................, which contains two types of particle, ......................................... and .................................................... . Their relative ....................................... ...
... In the middle of an atom is a very small ................................................................, which contains two types of particle, ......................................... and .................................................... . Their relative ....................................... ...
chapter-5-periodic-classification-of-elements
... Answer: No fixed position can be given to hydrogen in the Periodic Table. This was the first limitation of Mendeléev’s Periodic Table. He could not assign a correct position to hydrogen in his Table. Isotopes were discovered long after Mendeléev had proposed his periodic classification of elements. ...
... Answer: No fixed position can be given to hydrogen in the Periodic Table. This was the first limitation of Mendeléev’s Periodic Table. He could not assign a correct position to hydrogen in his Table. Isotopes were discovered long after Mendeléev had proposed his periodic classification of elements. ...
word - My eCoach
... Objective: Find out how ionization energy changes down a group and across a period on the periodic table. Materials: textbook pp. 855-857, Appendix A (Properties of Elements), graphing paper, pencil, ruler Procedure: 1. Using data from Appendix A of your textbook, create a line graph of atomic numbe ...
... Objective: Find out how ionization energy changes down a group and across a period on the periodic table. Materials: textbook pp. 855-857, Appendix A (Properties of Elements), graphing paper, pencil, ruler Procedure: 1. Using data from Appendix A of your textbook, create a line graph of atomic numbe ...
The Periodic Table - Ms. Simmons
... Mendeleev developed Periodic Law (Modern) Periodic Law: the elements, when listed in order of their atomic numbers, fall into recurring groups, so that elements with similar properties occur at regular intervals Periodic law is observed by all members of a column having the same ending to their elec ...
... Mendeleev developed Periodic Law (Modern) Periodic Law: the elements, when listed in order of their atomic numbers, fall into recurring groups, so that elements with similar properties occur at regular intervals Periodic law is observed by all members of a column having the same ending to their elec ...
Chapter 6 Study Guide Key
... b. The inner transition metal with the lowest atomic number La c. A metal in group 5A Bi d. All the transition metals with an atomic number that is a multiple of 5 Mn, Zn, Zr, Rh, Re, Hg, Db, Ds e. The electron configuration ends with 4s2 ...
... b. The inner transition metal with the lowest atomic number La c. A metal in group 5A Bi d. All the transition metals with an atomic number that is a multiple of 5 Mn, Zn, Zr, Rh, Re, Hg, Db, Ds e. The electron configuration ends with 4s2 ...
CHEM121 Lecture Ch2-3
... Elements and Symbols • Elements: – primary substances from which all other things are built. – Cannot be broken down into simpler substances ...
... Elements and Symbols • Elements: – primary substances from which all other things are built. – Cannot be broken down into simpler substances ...
Periodic Law
... Ionization energy decreases down a group. – It becomes easier to remove valence electrons as you move down a group because the electrons are farther from the nucleus. Shielding Effect – the inner shell electrons interfere with the nucleus attraction to the valence electrons. ...
... Ionization energy decreases down a group. – It becomes easier to remove valence electrons as you move down a group because the electrons are farther from the nucleus. Shielding Effect – the inner shell electrons interfere with the nucleus attraction to the valence electrons. ...
Chapter 5 – The Periodic Law 5-1 History of the Periodic Table A
... 3. His first periodic table was published in ___________. a. He placed _________________, __ (atomic mass _________), after ____________________, ___ (atomic mass _________). It allowed him to place _______________________ in a group of elements with which it shares similar _________________________ ...
... 3. His first periodic table was published in ___________. a. He placed _________________, __ (atomic mass _________), after ____________________, ___ (atomic mass _________). It allowed him to place _______________________ in a group of elements with which it shares similar _________________________ ...
III. Periodic Trends
... a. By what two metrics did he arrange the elements in his table? Increasing atomic mass & similar chemical and physical properties b. He predicted the discovery of several elements, and even described some of their physical and chemical properties. Gallium was one of those elements. The predictions ...
... a. By what two metrics did he arrange the elements in his table? Increasing atomic mass & similar chemical and physical properties b. He predicted the discovery of several elements, and even described some of their physical and chemical properties. Gallium was one of those elements. The predictions ...
Ch 5 power point
... History of the Periodic Table - Mosley • In 1911, English scientists Mosley and Rutherford recognized that elements fit into patterns better when they were arranged according to increasing number of protons, rather than increasing atomic mass. • Mosley’s work led to the modern definition of atomic ...
... History of the Periodic Table - Mosley • In 1911, English scientists Mosley and Rutherford recognized that elements fit into patterns better when they were arranged according to increasing number of protons, rather than increasing atomic mass. • Mosley’s work led to the modern definition of atomic ...
The Periodic Law Notes (Chapter 5) – Part 2
... Groups 3-12 -are all metals with metallic properties (malleability, luster, good conductors, etc…); are referred to as the Transition Metals -Harder and denser than alkali or alkaline -Less reactive than alkali or alkaline -For the most part their outermost electrons are in a d sublevel -Exceptions ...
... Groups 3-12 -are all metals with metallic properties (malleability, luster, good conductors, etc…); are referred to as the Transition Metals -Harder and denser than alkali or alkaline -Less reactive than alkali or alkaline -For the most part their outermost electrons are in a d sublevel -Exceptions ...
Section 6.1 Development of the Modern Periodic Table
... The Modern Periodic Table (cont.) • Non-metals are elements that are generally gases or brittle, dull-looking solids, and poor conductors of heat and electricity. • Group 17 is composed of highly reactive elements called halogens. • Group 18 gases are extremely unreactive and commonly called noble ...
... The Modern Periodic Table (cont.) • Non-metals are elements that are generally gases or brittle, dull-looking solids, and poor conductors of heat and electricity. • Group 17 is composed of highly reactive elements called halogens. • Group 18 gases are extremely unreactive and commonly called noble ...
Enriched Chemistry Chapter 5 * The Periodic Law
... Mosely discovered that the elements fit better when arranged in increasing order by their atomic number What elements does this effect? Mendeleev’s principle is known as the periodic law: the physical and chemical properties of the elements are periodic functions of their atomic numbers. This ...
... Mosely discovered that the elements fit better when arranged in increasing order by their atomic number What elements does this effect? Mendeleev’s principle is known as the periodic law: the physical and chemical properties of the elements are periodic functions of their atomic numbers. This ...
Chapter 7-8 Power Point - Kawameeh Middle School
... which is why carbon’s average atomic mass is close to 12 (12.01) ...
... which is why carbon’s average atomic mass is close to 12 (12.01) ...
