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Fall Final Exam Review Questions
... 41. What are properties of metals and where are they generally located on a periodic table? 42. What are properties of nonmetals and where are they generally located? 43. What are properties of metalloids and where are they generally located? 44. Make sure you know the major groups/chemical families ...
... 41. What are properties of metals and where are they generally located on a periodic table? 42. What are properties of nonmetals and where are they generally located? 43. What are properties of metalloids and where are they generally located? 44. Make sure you know the major groups/chemical families ...
Learning Objectives
... of atomic structure. 4. Distinguish between each of the following pairs of terms: a. neutron and proton b. atomic number and mass number c. atomic weight and mass number 5. Explain how the atomic number and mass number of an atom can be used to determine the number of neutrons. 6. Explain how two is ...
... of atomic structure. 4. Distinguish between each of the following pairs of terms: a. neutron and proton b. atomic number and mass number c. atomic weight and mass number 5. Explain how the atomic number and mass number of an atom can be used to determine the number of neutrons. 6. Explain how two is ...
Atom The smallest piece of matter that still has the properties of the
... Sub-atomic particle with no charge; located in nucleus of atom Sub-atomic particle with negative charge; much smaller than protons and neutrons Located at the center of the atom. Consists of protons and neutrons. Electrons surround the nucleus. Electron found in outermost shell of an atom; determine ...
... Sub-atomic particle with no charge; located in nucleus of atom Sub-atomic particle with negative charge; much smaller than protons and neutrons Located at the center of the atom. Consists of protons and neutrons. Electrons surround the nucleus. Electron found in outermost shell of an atom; determine ...
Periodic Table Vocabulary Periodic Table – a chart that organizes
... The Law of Conservation of Matter – a scientific law that states that during a chemical reaction, matter cannot be created or destroyed but can be changed into a different form. Period law- The chemical properties of elements tends to repeat over specific atomic number intervals Law of definite prop ...
... The Law of Conservation of Matter – a scientific law that states that during a chemical reaction, matter cannot be created or destroyed but can be changed into a different form. Period law- The chemical properties of elements tends to repeat over specific atomic number intervals Law of definite prop ...
Review 1st Qtr KEY
... 3. For an electron in an atom to change from the ground state to an excited state, a. energy must be released. b. energy must be absorbed. c. radiation must be emitted. d. the electron must make a transition from a higher to a lower energy level. ...
... 3. For an electron in an atom to change from the ground state to an excited state, a. energy must be released. b. energy must be absorbed. c. radiation must be emitted. d. the electron must make a transition from a higher to a lower energy level. ...
Name Period Nuclear Study Packet Set 1 1. What subatomic
... 3. Potassium-42 has a half life of 12 hours. At present, a given ore sample contains 34.2 mg of K-42. How much did it contain yesterday at the same time. 4. What percent of a sample of a radioactive element whose half life is 5 years will decay after 25 years? 5. What are some ways that nuclea ...
... 3. Potassium-42 has a half life of 12 hours. At present, a given ore sample contains 34.2 mg of K-42. How much did it contain yesterday at the same time. 4. What percent of a sample of a radioactive element whose half life is 5 years will decay after 25 years? 5. What are some ways that nuclea ...
PS 2.2
... the weighted average of the masses of the naturally occurring isotopes of an element. The atomic mass of an element can be found on the periodic table. Since it is an average, it is usually not a whole number. ...
... the weighted average of the masses of the naturally occurring isotopes of an element. The atomic mass of an element can be found on the periodic table. Since it is an average, it is usually not a whole number. ...
Advanced Chemistry Midterm
... 23. What are the electronegativity difference ranges for nonpolar bonds? For polar bonds? For ionic bonds? ...
... 23. What are the electronegativity difference ranges for nonpolar bonds? For polar bonds? For ionic bonds? ...
BellWork 2/16/2015
... Mg2+ ClFe2+ O2These elements are written to describe what? Grab a textbook and look it up if needed. ...
... Mg2+ ClFe2+ O2These elements are written to describe what? Grab a textbook and look it up if needed. ...
C2- Topic 1: Atomic structure and the periodic table. Assessable
... Explain how Mendeleev: - arranged the elements, known at that time, in a periodic table by using properties of these elements and their compounds - used his table to predict the existence and properties of some elements not then discovered ...
... Explain how Mendeleev: - arranged the elements, known at that time, in a periodic table by using properties of these elements and their compounds - used his table to predict the existence and properties of some elements not then discovered ...
C2 Topic 1 Can Do Sheet
... a arranged the elements, known at that time, in a periodic table by using properties of these elements and their compounds b used his table to predict the existence and properties of some elements not then discovered 1.2 Classify elements as metals or non-metals according to their position in the pe ...
... a arranged the elements, known at that time, in a periodic table by using properties of these elements and their compounds b used his table to predict the existence and properties of some elements not then discovered 1.2 Classify elements as metals or non-metals according to their position in the pe ...
I can describe an atom and its components I can relate energy levels
... ● The third energy level can hold 18 electrons ● The fourth energy level can hold 32 electrons. ...
... ● The third energy level can hold 18 electrons ● The fourth energy level can hold 32 electrons. ...
Properties of matter student notes[1]
... Element = Matter made of only _______________ kind of atom. Ex. Oxygen Can be naturally made or man-made. ...
... Element = Matter made of only _______________ kind of atom. Ex. Oxygen Can be naturally made or man-made. ...
Ch4StudyGuide
... Why do most atoms have no charge even though they are made up of positively charged protons and negatively charged electrons? ...
... Why do most atoms have no charge even though they are made up of positively charged protons and negatively charged electrons? ...
Review for Periodic - Mr-Durands
... 19.Where are the actinides located? 20.All elements are trying to become stable by gaining or losing their______________ 21.Who coined the word “atomos” when describing particles that were indivisible? 22.A positively charged subatomic particle. 23.A negatively charged subatomic particle. 24.A neutr ...
... 19.Where are the actinides located? 20.All elements are trying to become stable by gaining or losing their______________ 21.Who coined the word “atomos” when describing particles that were indivisible? 22.A positively charged subatomic particle. 23.A negatively charged subatomic particle. 24.A neutr ...
Nuclear Chemistry - Xavier High School
... Nucleons (nuclear particles… protons and neutrons) are rearranged but conserved ...
... Nucleons (nuclear particles… protons and neutrons) are rearranged but conserved ...
Radioactive Isotopes and Nuclear Equations
... b. Identify the radioactive isotope that decays to produce a neutron and phosphorus-30 when bombarded with an alpha particle. ...
... b. Identify the radioactive isotope that decays to produce a neutron and phosphorus-30 when bombarded with an alpha particle. ...
The New Alchemy
... Protons – one of the parts of an atom. Protons have a (+) charge and are found in the nucleus. Neutrons – one of the parts of an atom. Neutrons have no charge and are found in the nucleus. Nucleus – found in the center of an atom. It contains protons and neutrons. Nuclei is the plural of nucleus. Nu ...
... Protons – one of the parts of an atom. Protons have a (+) charge and are found in the nucleus. Neutrons – one of the parts of an atom. Neutrons have no charge and are found in the nucleus. Nucleus – found in the center of an atom. It contains protons and neutrons. Nuclei is the plural of nucleus. Nu ...
Atomic Structure and the Periodic Table Vocabulary
... 13. Each horizontal row in the periodic table. __________________________________________________________________ ...
... 13. Each horizontal row in the periodic table. __________________________________________________________________ ...
1.2 Atomic Theory
... The average atomic mass for magnesium found on the periodic table is a weighted average of the three isotopes: 24.31 g of Mg Radioactivity: spontaneous decay of nuclei, releasing energy and subatomic particles Radioisotopes: an unstable isotope of an element, which undergoes radioactive decay ...
... The average atomic mass for magnesium found on the periodic table is a weighted average of the three isotopes: 24.31 g of Mg Radioactivity: spontaneous decay of nuclei, releasing energy and subatomic particles Radioisotopes: an unstable isotope of an element, which undergoes radioactive decay ...
Chapter 3 Chemical Foundations
... Atomic Number, Mass Number, and Nucleus atomic number (Z) = mass number (A) = element symbol (X) = Note: mass number= Therefore …. mass number = ……. A= Z + number of neutrons ….. Number of neutrons = A-Z Note: For any given element on the periodic table: Number of protons = In order to symbolically ...
... Atomic Number, Mass Number, and Nucleus atomic number (Z) = mass number (A) = element symbol (X) = Note: mass number= Therefore …. mass number = ……. A= Z + number of neutrons ….. Number of neutrons = A-Z Note: For any given element on the periodic table: Number of protons = In order to symbolically ...
Slide 1
... Root/ Origin word: Element from L. elementem meanibg "rudiment, first principle, Atom matter in its most basic form," Gk. atomos meaning ...
... Root/ Origin word: Element from L. elementem meanibg "rudiment, first principle, Atom matter in its most basic form," Gk. atomos meaning ...
unit plan template
... Identify the names and symbols of common elements. Identify quarks as subatomic particles of matter. Describe the electron cloud model of the atom. Explain how electrons are arranged in an atom. Compute the atomic mass and mass number of an atom. Identify the components of isotopes. In ...
... Identify the names and symbols of common elements. Identify quarks as subatomic particles of matter. Describe the electron cloud model of the atom. Explain how electrons are arranged in an atom. Compute the atomic mass and mass number of an atom. Identify the components of isotopes. In ...
VOCABULARY name, date, hour: Fill in the number of each term
... ___ columns of the periodic table; also known as groups ___ number of protons carried by the nucleus of an atom ___ element with an imbalance in the number of neutrons and protons ___ uncharged particle found in the nucleus of an atom ___ physical weight of an atom ___ horizontal rows of elements on ...
... ___ columns of the periodic table; also known as groups ___ number of protons carried by the nucleus of an atom ___ element with an imbalance in the number of neutrons and protons ___ uncharged particle found in the nucleus of an atom ___ physical weight of an atom ___ horizontal rows of elements on ...
2.1 The Nature of Matter - Sonoma Valley High School
... neutrons and different mass. All isotopes of an element have the same chemical properties b/c their electrons are the same. ...
... neutrons and different mass. All isotopes of an element have the same chemical properties b/c their electrons are the same. ...
Neptunium
![](https://commons.wikimedia.org/wiki/Special:FilePath/Phase_diagram_of_neptunium_(1975).png?width=300)
Neptunium is a chemical element with symbol Np and atomic number 93. A radioactive actinide metal, neptunium is the first transuranic element. Its position in the periodic table just after uranium, named after the planet Uranus, led to it being named after Neptune, the next planet beyond Uranus. A neptunium atom has 93 protons and 93 electrons, of which seven are valence electrons. Neptunium metal is silvery and tarnishes when exposed to air. The element occurs in three allotropic forms and it normally exhibits five oxidation states, ranging from +3 to +7. It is radioactive, pyrophoric, and can accumulate in bones, which makes the handling of neptunium dangerous.Although many false claims of its discovery were made over the years, the element was first synthesized by Edwin McMillan and Philip H. Abelson at the Berkeley Radiation Laboratory in 1940. Since then, most neptunium has been and still is produced by neutron irradiation of uranium in nuclear reactors. The vast majority is generated as a by-product in conventional nuclear power reactors. While neptunium itself has no commercial uses at present, it is widely used as a precursor for the formation of plutonium-238, used in radioisotope thermal generators. Neptunium has also been used in detectors of high-energy neutrons.The most stable isotope of neptunium, neptunium-237, is a by-product of nuclear reactors and plutonium production. It, and the isotope neptunium-239, are also found in trace amounts in uranium ores due to neutron capture reactions and beta decay.