2 - My George School
... Element- grab your ear like so Compound- clap as shown Molecule-move to the groove H2: ________ MgO: _______ Fe: _________ ...
... Element- grab your ear like so Compound- clap as shown Molecule-move to the groove H2: ________ MgO: _______ Fe: _________ ...
2 IONS
... Because electrons are on the outside, sometimes electrons can be gained from or lost to another atom. These atoms are called ions. Cations are positive (LOST ELECTRON) and are formed by elements on the left side of the periodic chart. Anions are negative (GAINED ELECTRON) and are formed by eleme ...
... Because electrons are on the outside, sometimes electrons can be gained from or lost to another atom. These atoms are called ions. Cations are positive (LOST ELECTRON) and are formed by elements on the left side of the periodic chart. Anions are negative (GAINED ELECTRON) and are formed by eleme ...
ISOTOPES 3 SUBATOMIC PARTICLES Proton Located inside the
... Located outside of the nucleus in an “electron cloud” Involved in chemical bonding Negative charge Equal to the # of protons in a neutral atom How many electrons does Potassium have? How many electrons does Nitrogen have? o Neutron Located inside the nucleus of an atom No charge # ...
... Located outside of the nucleus in an “electron cloud” Involved in chemical bonding Negative charge Equal to the # of protons in a neutral atom How many electrons does Potassium have? How many electrons does Nitrogen have? o Neutron Located inside the nucleus of an atom No charge # ...
chapter_four
... found outside the nucleus in regions called orbitals Protons are positively charged and found in the nucleus of an atom with neutrons, which have no charge There are even smaller particles but we do not study ...
... found outside the nucleus in regions called orbitals Protons are positively charged and found in the nucleus of an atom with neutrons, which have no charge There are even smaller particles but we do not study ...
Modern Physics Important Concepts for AP Test
... Bohr radius = 0.0529 nm (Use for # atoms on head of pin in MC) En = -13.6/n2 eV (energy for quantum states of hydrogen) o Atomic Transitions Electrons can absorb equal to the energy separation, ΔE, to move from the ground state to an excited state (higher energy level). When electron jumps b ...
... Bohr radius = 0.0529 nm (Use for # atoms on head of pin in MC) En = -13.6/n2 eV (energy for quantum states of hydrogen) o Atomic Transitions Electrons can absorb equal to the energy separation, ΔE, to move from the ground state to an excited state (higher energy level). When electron jumps b ...
Chemistry 212 Name:
... 4. Write a balanced equation for the reaction of sodium sulfide with hydrochloric acid? (5 points) Na2S(aq) + 2 HCl(aq) → 2 NaCl(aq) + H2S(g) 5. Discuss the halogens. (5 points) Each halogen is obtained by oxidation of the halide ion to the halogen in a molten salt, except fluorine. None of the halo ...
... 4. Write a balanced equation for the reaction of sodium sulfide with hydrochloric acid? (5 points) Na2S(aq) + 2 HCl(aq) → 2 NaCl(aq) + H2S(g) 5. Discuss the halogens. (5 points) Each halogen is obtained by oxidation of the halide ion to the halogen in a molten salt, except fluorine. None of the halo ...
Chemistry and elements 1. The rows of the periodic table are called
... 1. The rows of the periodic table are called: a. classes b. periods c. groups d. families 2. As you move from left to right across the periodic table: a. atomic number decreases b. atomic number increases c. The elements become darker in color d. The elements become lighter in color 4. Where would y ...
... 1. The rows of the periodic table are called: a. classes b. periods c. groups d. families 2. As you move from left to right across the periodic table: a. atomic number decreases b. atomic number increases c. The elements become darker in color d. The elements become lighter in color 4. Where would y ...
Elements PPT
... We have joined two elements together with an ionic bond to form the mineral Halite or more commonly salt. ...
... We have joined two elements together with an ionic bond to form the mineral Halite or more commonly salt. ...
General_Chemistry_Text_Assignments_-_HOLT
... The chemical reaction where elements react (bond together) to form a compound is called synthesis. Example: Hydrogen gas and oxygen gas react to synthesize water. 2H2 + O2 2H2O The elements in a compound can only be separated by a chemical reaction. This reaction breaks the bonds between the eleme ...
... The chemical reaction where elements react (bond together) to form a compound is called synthesis. Example: Hydrogen gas and oxygen gas react to synthesize water. 2H2 + O2 2H2O The elements in a compound can only be separated by a chemical reaction. This reaction breaks the bonds between the eleme ...
This `practice exam`
... a) no two electrons in an atom can have the same spin. b) electrons can have either ±½ spins. c) electrons with opposing spins are attracted to each other. d) no two electrons in an atom can have the same four quantum numbers. e) atoms with no unpaired electrons are diamagnetic. 35. Which element ha ...
... a) no two electrons in an atom can have the same spin. b) electrons can have either ±½ spins. c) electrons with opposing spins are attracted to each other. d) no two electrons in an atom can have the same four quantum numbers. e) atoms with no unpaired electrons are diamagnetic. 35. Which element ha ...
Column A
... b. How many electrons can be found in the first energy level of an atom? 2 c. How many electrons can be found in the second energy level of an atom? 8 d. How can the electron arrangement/configuration be determined for a neutral atom? In a neutral atom the # of protons = # electrons then fill energy ...
... b. How many electrons can be found in the first energy level of an atom? 2 c. How many electrons can be found in the second energy level of an atom? 8 d. How can the electron arrangement/configuration be determined for a neutral atom? In a neutral atom the # of protons = # electrons then fill energy ...
CHAPTER 1: INTRODUCTION TO CHEMISTRY
... The atomic number (the number on top of the element) is the number of protons and electrons in the atom of that element since the elements usually have a neutral overall charge Ex: Carbon’s is 6 so it has 6 protons and electrons. ...
... The atomic number (the number on top of the element) is the number of protons and electrons in the atom of that element since the elements usually have a neutral overall charge Ex: Carbon’s is 6 so it has 6 protons and electrons. ...
- St. Aidan School
... nucleus. Found out that electrons had almost no mass so nearly all of the atom’s mass is located in the nucleus. He named the positively charged particles in the nucleus ...
... nucleus. Found out that electrons had almost no mass so nearly all of the atom’s mass is located in the nucleus. He named the positively charged particles in the nucleus ...
Matter_Quiz_Topics_2017
... Understand what is meant by the following terms: atom, proton, neutron and electron, isotope, atomic number, mass number, matter, families, period, charge, atomic mass, ion Discuss the structure of an atom. How many electrons can each of the first three energy levels hold? Where is most of the mass ...
... Understand what is meant by the following terms: atom, proton, neutron and electron, isotope, atomic number, mass number, matter, families, period, charge, atomic mass, ion Discuss the structure of an atom. How many electrons can each of the first three energy levels hold? Where is most of the mass ...
Atomic Structure - hrsbstaff.ednet.ns.ca
... So, what’s up with all these isotopes anyway? In nature elements are not made up of atoms that are all exactly the same! Some will be heavier than others, even though they are still the same type of atom. C-12 and C-14 are both Carbon, with all the usual Carbon properties, but the C-14 has two more ...
... So, what’s up with all these isotopes anyway? In nature elements are not made up of atoms that are all exactly the same! Some will be heavier than others, even though they are still the same type of atom. C-12 and C-14 are both Carbon, with all the usual Carbon properties, but the C-14 has two more ...
Answers for Review Questions Exam 3
... of a metal and an acid, water or a base, and finally a metal hydride with water. In the past it was used as a heating fuel. It is also used to form ammonia and primarily as a reactant for many reactions. 21. a.+1 ...
... of a metal and an acid, water or a base, and finally a metal hydride with water. In the past it was used as a heating fuel. It is also used to form ammonia and primarily as a reactant for many reactions. 21. a.+1 ...
Answers for Review Questions Exam 3
... of a metal and an acid, water or a base, and finally a metal hydride with water. In the past it was used as a heating fuel. It is also used to form ammonia and primarily as a reactant for many reactions. 21. a.+1 ...
... of a metal and an acid, water or a base, and finally a metal hydride with water. In the past it was used as a heating fuel. It is also used to form ammonia and primarily as a reactant for many reactions. 21. a.+1 ...
CHAPTER 4 ATOMIC STRUCTURE
... • Lowest levels get filled before higher energy levels----inner to outer • Stable electron configuration is the one in which the electrons are in orbitals with the lowest possible energies (ground state) • Ques. 1-5 pg. 118 ...
... • Lowest levels get filled before higher energy levels----inner to outer • Stable electron configuration is the one in which the electrons are in orbitals with the lowest possible energies (ground state) • Ques. 1-5 pg. 118 ...
Early Greek Philosophers determined that atoms are the building
... Halogens Elements in group 17 7 valence electrons Greek “forming salts Very reactive non-metals that easily form compounds with metals. These compounds are known as salts. ...
... Halogens Elements in group 17 7 valence electrons Greek “forming salts Very reactive non-metals that easily form compounds with metals. These compounds are known as salts. ...
Introduction to the Periodic Table
... increasing atomic number and mass Groups/Families (columns) – elements that share common characteristics ...
... increasing atomic number and mass Groups/Families (columns) – elements that share common characteristics ...
Atomic Size - ThinkChemistry
... to the next, an electron energy level is added each time. Going Across a Period (row): The size of an atom decreases going across a period from left to right. This is because on going across the period from one element to the next, a proton is added to the nucleus each time. ...
... to the next, an electron energy level is added each time. Going Across a Period (row): The size of an atom decreases going across a period from left to right. This is because on going across the period from one element to the next, a proton is added to the nucleus each time. ...
Atoms and the Periodic Table
... Energy level: any of the possible energies an electron may have in an atom Electrons must gain or lose energy to move up or down the energy levels ...
... Energy level: any of the possible energies an electron may have in an atom Electrons must gain or lose energy to move up or down the energy levels ...
Unit1: Matter Review
... • Bohr’s model was readily accepted by scientists and they began drawing models of the atom using his theory. ...
... • Bohr’s model was readily accepted by scientists and they began drawing models of the atom using his theory. ...
Year 11 Chemistry Balancing Equations
... Looking over your electron configurations, are there any elements above that have similar valence electron configurations to those of other elements? If so, list below the elements that are similar (in terms of valence electrons) and state the similarity for each of the groups. ...
... Looking over your electron configurations, are there any elements above that have similar valence electron configurations to those of other elements? If so, list below the elements that are similar (in terms of valence electrons) and state the similarity for each of the groups. ...
WARM UP 9/17
... because of too many or not enough electrons (makes the atom more reactive) ANION – Too many e- , so charge is negative ...
... because of too many or not enough electrons (makes the atom more reactive) ANION – Too many e- , so charge is negative ...