Chem. Review Notes
... – so used to identify the element – on periodic table • increases from left to right and top to bottom ...
... – so used to identify the element – on periodic table • increases from left to right and top to bottom ...
Name: Period: _____ Date
... 8. _____ average mass of all the isotopes of an element 9. _____ any charged particle, an atom that has gained or lost electrons 10. _____ s, p, d, f…sublevels of the electron cloud 11. _____ any element that tends to take electrons and get a negative charge 12. _____ part of an atom with a negative ...
... 8. _____ average mass of all the isotopes of an element 9. _____ any charged particle, an atom that has gained or lost electrons 10. _____ s, p, d, f…sublevels of the electron cloud 11. _____ any element that tends to take electrons and get a negative charge 12. _____ part of an atom with a negative ...
The Basis of All Materials
... Any hot gas at low pressure will produce a line spectrum, although the spectra of other gases are more complex than that of hydrogen. ...
... Any hot gas at low pressure will produce a line spectrum, although the spectra of other gases are more complex than that of hydrogen. ...
The Atom Visible light
... Any hot gas at low pressure will produce a line spectrum, although the spectra of other gases are more complex than that of hydrogen. ...
... Any hot gas at low pressure will produce a line spectrum, although the spectra of other gases are more complex than that of hydrogen. ...
Bohr´s atomic model (1913)
... Electrons orbit around the nucleus (which, as we know now, is formed by protons and neutrons) in different layers. In each layer there is a maximum number of electrons: In the first layer there are 2 electrons at most, 8 in the second layer, 18 in the third layer... In the layer n there are 2n2 elec ...
... Electrons orbit around the nucleus (which, as we know now, is formed by protons and neutrons) in different layers. In each layer there is a maximum number of electrons: In the first layer there are 2 electrons at most, 8 in the second layer, 18 in the third layer... In the layer n there are 2n2 elec ...
DALTON`S ATOMIC THEORY - 1808: Publication of Dalton`s "A New
... 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 simple, whole number ratios. Most importantly, CHEMICAL REACTIO ...
... 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 simple, whole number ratios. Most importantly, CHEMICAL REACTIO ...
Elements, mixtures and compounds lecture
... A. exists as only one type of atom: it is, therefore a pure substance (This does not often occur in nature); gold necklace? Oxygen is the most common pure element on Earth (occurs as a dioxide: O2 , what does “di” mean?) B. cannot be broken down by chemical reactions: burning/acids/eating (but nucle ...
... A. exists as only one type of atom: it is, therefore a pure substance (This does not often occur in nature); gold necklace? Oxygen is the most common pure element on Earth (occurs as a dioxide: O2 , what does “di” mean?) B. cannot be broken down by chemical reactions: burning/acids/eating (but nucle ...
4.9 Bohr`s Theory of the Atom
... • Bohr used Einstein’s observations to come up with a theory about where electrons orbit around the nucleus. • Bohr suggested that electrons only orbit at defined distances from the nucleus. Bohr suggested that when an electron moves from one orbit to another, it absorbs or emits light. ...
... • Bohr used Einstein’s observations to come up with a theory about where electrons orbit around the nucleus. • Bohr suggested that electrons only orbit at defined distances from the nucleus. Bohr suggested that when an electron moves from one orbit to another, it absorbs or emits light. ...
Atomic Theory
... The number of levels depends on the number of electrons. The first level (K) holds two electrons. The second level holds eight electrons. The third level holds 18, and the fourth 32. No atom can have more than eight electrons in its valence shell. When the valence shell reaches eight electrons, the ...
... The number of levels depends on the number of electrons. The first level (K) holds two electrons. The second level holds eight electrons. The third level holds 18, and the fourth 32. No atom can have more than eight electrons in its valence shell. When the valence shell reaches eight electrons, the ...
Atomic Theory, Nomenclature, and Balancing - Ars
... piece off an atom. Experiments by J.J.Thompson in the late 1800’s showed this idea to be incorrect. His experiment was the first evidence of the particles known as electrons. Because these electrons have a negative charge and atoms have no charge there must be a part of the atom with a positive char ...
... piece off an atom. Experiments by J.J.Thompson in the late 1800’s showed this idea to be incorrect. His experiment was the first evidence of the particles known as electrons. Because these electrons have a negative charge and atoms have no charge there must be a part of the atom with a positive char ...
Chapter 1 Learning Objective Summary
... The atomic weight of an element is what is found on the periodic table, which is actually an average of the atomic masses of all of the existin isotopes of the element, wei hted by their abundances in the earth’s crust. This is called a weighted mean, and can be calculated using fractional abundance ...
... The atomic weight of an element is what is found on the periodic table, which is actually an average of the atomic masses of all of the existin isotopes of the element, wei hted by their abundances in the earth’s crust. This is called a weighted mean, and can be calculated using fractional abundance ...
Final review KEY
... Isotopes have a different mass number and number of neutrons 21. Explain how Rutherford’s gold foil experiment worked and what it proved. Rutherford shot particles through gold foil. Most went through, but some bounced back. He concluded that atoms are mostly empty space and the particles bounced of ...
... Isotopes have a different mass number and number of neutrons 21. Explain how Rutherford’s gold foil experiment worked and what it proved. Rutherford shot particles through gold foil. Most went through, but some bounced back. He concluded that atoms are mostly empty space and the particles bounced of ...
Name: Period: _____ Date
... 8. _____ average mass of all the isotopes of an element 9. _____ any charged particle, an atom that has gained or lost electrons 10. _____ s, p, d, f…sublevels of the electron cloud 11. _____ any element that tends to take electrons and get a negative charge 12. _____ part of an atom with a negative ...
... 8. _____ average mass of all the isotopes of an element 9. _____ any charged particle, an atom that has gained or lost electrons 10. _____ s, p, d, f…sublevels of the electron cloud 11. _____ any element that tends to take electrons and get a negative charge 12. _____ part of an atom with a negative ...
Atomic Structure - Peoria Public Schools
... J.J. Thomson: discovery of the electron Henri Becquerel: Discovery of radioactivity 1900's Robert Millikan: Charge and mass of the electron Ernest Rutherford: Existence of the nucleus, and its relative size Meitner & Fermi: Sustained nuclear fission Ernest Lawrence: The cyclotron and tra ...
... J.J. Thomson: discovery of the electron Henri Becquerel: Discovery of radioactivity 1900's Robert Millikan: Charge and mass of the electron Ernest Rutherford: Existence of the nucleus, and its relative size Meitner & Fermi: Sustained nuclear fission Ernest Lawrence: The cyclotron and tra ...
Chemistry
... the protons and neutrons, and makes up the mass of the atom. – The protons and neutrons make up all of the mass of an atom – The neutron has no charge to it – The proton has a positive charge (p for positive) ...
... the protons and neutrons, and makes up the mass of the atom. – The protons and neutrons make up all of the mass of an atom – The neutron has no charge to it – The proton has a positive charge (p for positive) ...
STUDY GUIDE for DIGESTION and NUTRITION
... Distinguish metals from non metals using properties Recognize elements in the alkali, alkaline earth, halogen, and noble gas families. Describe how hydrogen is a “family of one” Explain the difference between “families” and “periods” on a periodic table. Explain the difference between atom ...
... Distinguish metals from non metals using properties Recognize elements in the alkali, alkaline earth, halogen, and noble gas families. Describe how hydrogen is a “family of one” Explain the difference between “families” and “periods” on a periodic table. Explain the difference between atom ...
03Atomic_Structure 175KB Sep 13 2012 09:32:33 AM
... • The nucleus contains most of an atom's mass • It was discovered by Ernest Rutherford in ...
... • The nucleus contains most of an atom's mass • It was discovered by Ernest Rutherford in ...
Reactions I Can..
... 5. Identify key sections of the periodic table including orbital blocks, metal vs. nonmetal, alkali metals, alkaline earth metals, halogens, noble gases, lanthanide series, actinide series, transition elements, inner-transition elements, and transuranic elements. 6. Identify the phase (solid, liquid ...
... 5. Identify key sections of the periodic table including orbital blocks, metal vs. nonmetal, alkali metals, alkaline earth metals, halogens, noble gases, lanthanide series, actinide series, transition elements, inner-transition elements, and transuranic elements. 6. Identify the phase (solid, liquid ...
Atoms
... 5. Identify key sections of the periodic table including orbital blocks, metal vs. nonmetal, alkali metals, alkaline earth metals, halogens, noble gases, lanthanide series, actinide series, transition elements, inner-transition elements, and trans-uranic elements. 6. Identify the phase (solid, liqui ...
... 5. Identify key sections of the periodic table including orbital blocks, metal vs. nonmetal, alkali metals, alkaline earth metals, halogens, noble gases, lanthanide series, actinide series, transition elements, inner-transition elements, and trans-uranic elements. 6. Identify the phase (solid, liqui ...
The parts of Dalton`s theory Matter is composed of small, chemically
... 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 simple, whole number ratios. Most importantly, CHEMICAL REACTIO ...
... 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 simple, whole number ratios. Most importantly, CHEMICAL REACTIO ...
Chemistry Essay - Properties of atoms 21.8Kb
... periodic table which not only organizes known information, but also enables scientists to predict unknown properties (Hinchlife, 2011, p.14). Elements in the periodic table are arranged according to their atomic structure which is a systematic increasing the number of atoms. The elements display oth ...
... periodic table which not only organizes known information, but also enables scientists to predict unknown properties (Hinchlife, 2011, p.14). Elements in the periodic table are arranged according to their atomic structure which is a systematic increasing the number of atoms. The elements display oth ...
Chemistry Fall Semester Review Sheet
... Isotopes have a different mass number and number of neutrons 21. Explain how Rutherford’s gold foil experiment worked and what it proved. Rutherford shot particles through gold foil. Most went through, but some bounced back. He concluded that atoms are mostly empty space and the particles bounced of ...
... Isotopes have a different mass number and number of neutrons 21. Explain how Rutherford’s gold foil experiment worked and what it proved. Rutherford shot particles through gold foil. Most went through, but some bounced back. He concluded that atoms are mostly empty space and the particles bounced of ...
Chapter 2 Atoms, Molecules, and Ions
... Calculations showed that the nucleus must contain most of the mass of the atom and must be very small compared to the volume occupied by the atom. The positively charged particle present in the nucleus was called a proton. The nucleus of the hydrogen atom carries one positive charge and is a proton. ...
... Calculations showed that the nucleus must contain most of the mass of the atom and must be very small compared to the volume occupied by the atom. The positively charged particle present in the nucleus was called a proton. The nucleus of the hydrogen atom carries one positive charge and is a proton. ...
a) air c) milk f) beer
... What is the ratio of oxygen in the two compounds for a fixed amount of nitrogen? Bonus question: Give possibilities for the compounds. ...
... What is the ratio of oxygen in the two compounds for a fixed amount of nitrogen? Bonus question: Give possibilities for the compounds. ...