TEST REVIEW S Valence Electrons TEST REVIEW SHEET 2017
... NOTE: If an element has <4 valence electrons it will give them away during an ionic bond and become a positive ion. If >4, it will take them and become a negative ion For the most part…. metals will give away their valence electrons and nonmetals will take enough valence electrons to fill their oute ...
... NOTE: If an element has <4 valence electrons it will give them away during an ionic bond and become a positive ion. If >4, it will take them and become a negative ion For the most part…. metals will give away their valence electrons and nonmetals will take enough valence electrons to fill their oute ...
Periodic Table
... •Representing a system of classifying, or logically grouping, all of the known elements –Brought order to unrelated facts –Helped scientist predict the existence of unknown elements ...
... •Representing a system of classifying, or logically grouping, all of the known elements –Brought order to unrelated facts –Helped scientist predict the existence of unknown elements ...
Review Periodicity
... 15. The potassium ion is (larger, smaller, the same size ) than the neutral atom. The reason why is electrons were (gained, lost, shared) making the nuclear force increase, decrease, remain the same) 16. The silicon ion is (larger, smaller, the same size) than the neutral atom. The reason why is ele ...
... 15. The potassium ion is (larger, smaller, the same size ) than the neutral atom. The reason why is electrons were (gained, lost, shared) making the nuclear force increase, decrease, remain the same) 16. The silicon ion is (larger, smaller, the same size) than the neutral atom. The reason why is ele ...
The Atom
... 1 amu Neutron No charge 1amu Electron Cloud Surrounds the small nucleus Contains mostly empty space Largest part of atom Contains very little (considered no) mass Electron Cloud & Energy Levels Energy levels Areas where electrons travel Closest to nucleus- least energy Electrons move between energy ...
... 1 amu Neutron No charge 1amu Electron Cloud Surrounds the small nucleus Contains mostly empty space Largest part of atom Contains very little (considered no) mass Electron Cloud & Energy Levels Energy levels Areas where electrons travel Closest to nucleus- least energy Electrons move between energy ...
Chapter 3 notes
... • Orbital- or energy shell/level is a region in an atom where there is a high probability of finding electrons. • Valence electron- an electron in the outermost energy level of an atom. So in Al valence 3. ...
... • Orbital- or energy shell/level is a region in an atom where there is a high probability of finding electrons. • Valence electron- an electron in the outermost energy level of an atom. So in Al valence 3. ...
C2_Chemistry_Summary_Topic_1
... Keywords: proton, neutron, electron, shells, negative, atomic number, mass number ...
... Keywords: proton, neutron, electron, shells, negative, atomic number, mass number ...
Intensive Chemistry: the Structure of Matter
... Source: http://chem.illinois.edu/CLCwebsite/demos.html ...
... Source: http://chem.illinois.edu/CLCwebsite/demos.html ...
Test 1
... Atoms contain the same number of protons and electrons. The mass of an atom in amu is approximated as the number of photons plus the number of neutrons present in the nucleus. Atoms can be split into a nucleus and the electrons, and the electrons move around the nucleus. Different isotopes of an ele ...
... Atoms contain the same number of protons and electrons. The mass of an atom in amu is approximated as the number of photons plus the number of neutrons present in the nucleus. Atoms can be split into a nucleus and the electrons, and the electrons move around the nucleus. Different isotopes of an ele ...
Linking Asteroids and Meteorites through Reflectance
... Periodic Table • A chart in which all known elements are listed in order of atomic number • http://theodoregray.com/periodictable/ ...
... Periodic Table • A chart in which all known elements are listed in order of atomic number • http://theodoregray.com/periodictable/ ...
Chemistry 101 Chapter 4 Elements, Atoms, and Ions = =
... away from the nucleus and there is a weaker attractive force between a nucleus and its outershell electrons). Ionic compounds: matters are electrically neutral (uncharged). The total number of positive charges must equal the total number of negative charges. The subscripts in the formulas for ionic ...
... away from the nucleus and there is a weaker attractive force between a nucleus and its outershell electrons). Ionic compounds: matters are electrically neutral (uncharged). The total number of positive charges must equal the total number of negative charges. The subscripts in the formulas for ionic ...
Worksheet
... 19. __________ He deduced the relationship between the energy and frequency of radiation. 20. __________ He proposed that light could be described as quanta of energy that behave as particles. ...
... 19. __________ He deduced the relationship between the energy and frequency of radiation. 20. __________ He proposed that light could be described as quanta of energy that behave as particles. ...
nuclear chemistry - La Salle High School
... VI. Nuclear Stability A. The nucleus of an atom is stable if it does NOT change into another nuclide without adding outside energy. B. Look at each element, determine what nuclides of the elements are stable, plot stable nuclides on graph. No. of protons x axis No. of neutrons y-axis ...
... VI. Nuclear Stability A. The nucleus of an atom is stable if it does NOT change into another nuclide without adding outside energy. B. Look at each element, determine what nuclides of the elements are stable, plot stable nuclides on graph. No. of protons x axis No. of neutrons y-axis ...
Atoms and Their Electrons
... An element must have a certain number of protons but it can have a range of numbers of neutrons i.e. hydrogen can have 0, 1, or 2 neutrons to go with its 1 proton. These are called isotopes of hydrogen In real life there may be a number of different stable isotopes of each element. This makes it dif ...
... An element must have a certain number of protons but it can have a range of numbers of neutrons i.e. hydrogen can have 0, 1, or 2 neutrons to go with its 1 proton. These are called isotopes of hydrogen In real life there may be a number of different stable isotopes of each element. This makes it dif ...
Chapter 6 Notes
... NIB - Groups of elements and their Properties – Students should refer to Appendix A!!! Properties of families Group 1 - Alkali Metals - “alkali” comes from Arabic - means “ashes” - early chemists separated sodium and potassium compounds from ashes - the hydroxides of these compounds are strongly ba ...
... NIB - Groups of elements and their Properties – Students should refer to Appendix A!!! Properties of families Group 1 - Alkali Metals - “alkali” comes from Arabic - means “ashes” - early chemists separated sodium and potassium compounds from ashes - the hydroxides of these compounds are strongly ba ...
Periodic Table Jeopardy
... A substance that cannot be separated or broken down into simpler substances by chemical means. All atoms in this substance have the same atomic #. ...
... A substance that cannot be separated or broken down into simpler substances by chemical means. All atoms in this substance have the same atomic #. ...
Lecture notes chapter 4
... away from the nucleus and there is a weaker attractive force between a nucleus and its outershell electrons). Ionic compounds: matters are electrically neutral (uncharged). The total number of positive charges must equal the total number of negative charges. The subscripts in the formulas for ionic ...
... away from the nucleus and there is a weaker attractive force between a nucleus and its outershell electrons). Ionic compounds: matters are electrically neutral (uncharged). The total number of positive charges must equal the total number of negative charges. The subscripts in the formulas for ionic ...
John Dalton William Crookes J.J. Thomson Ernest Rutherford
... -Element – matter made of atoms of only one kind (periodic table of elements) ...
... -Element – matter made of atoms of only one kind (periodic table of elements) ...
Quiz: The Atom (Open Notes)
... 10. T or F A neutron carries a positive charge. 11. T or F A proton has a charge that is equal in force but opposite in charge to each electron. 12. T or F Protons and electrons are about equal in mass. 13. T or F The mass of an atom depends on the number of protons and neutrons in its nucleus. 14. ...
... 10. T or F A neutron carries a positive charge. 11. T or F A proton has a charge that is equal in force but opposite in charge to each electron. 12. T or F Protons and electrons are about equal in mass. 13. T or F The mass of an atom depends on the number of protons and neutrons in its nucleus. 14. ...
MatterPP4
... A compound is a substance that is composed of atoms of two or more different elements that are chemically combined. Most compounds have totally different properties from the elements of which they are composed. Chemical bonds are the forces that hold the elements together in a compound creating a st ...
... A compound is a substance that is composed of atoms of two or more different elements that are chemically combined. Most compounds have totally different properties from the elements of which they are composed. Chemical bonds are the forces that hold the elements together in a compound creating a st ...
Chemical Reactions
... Catalysts and Inhibitors • A catalyst is a substance that speeds up a reaction. • An inhibitor is a substance used to slow down a reaction or prevent it completely. • The catalyst and the inhibitor do not participate in the reaction. They remain unchanged after the reaction is over. ...
... Catalysts and Inhibitors • A catalyst is a substance that speeds up a reaction. • An inhibitor is a substance used to slow down a reaction or prevent it completely. • The catalyst and the inhibitor do not participate in the reaction. They remain unchanged after the reaction is over. ...