The Atom
... → electrons gain energy and jump to higher energy levels, but ultimately fall to lowest energy level (or ground state), see Fig. 5.13 on p.121 → light separated into narrow bands called an emission line spectrum – also called an "atomic fingerprint" since each element emits its own unique spectrum, ...
... → electrons gain energy and jump to higher energy levels, but ultimately fall to lowest energy level (or ground state), see Fig. 5.13 on p.121 → light separated into narrow bands called an emission line spectrum – also called an "atomic fingerprint" since each element emits its own unique spectrum, ...
History of Modern Atomic Theory-2012
... Aristotle’s theory of earth, wind, fire, and water was believed until the early 1800’s. ...
... Aristotle’s theory of earth, wind, fire, and water was believed until the early 1800’s. ...
Name: Period: ______ Date: Atom Models Elements are made up of
... 2. By looking at the atomic number, figure out how many protons it has 3. Draw those number of protons inside the nucleus Number of neutrons: 4. Then, subtract the number of protons from the atomic mass (look on the periodic table) to find the number of neutrons the atom contains 5. Draw those numbe ...
... 2. By looking at the atomic number, figure out how many protons it has 3. Draw those number of protons inside the nucleus Number of neutrons: 4. Then, subtract the number of protons from the atomic mass (look on the periodic table) to find the number of neutrons the atom contains 5. Draw those numbe ...
Ch_3___History_of_Modern_Atomic_Theory_2012
... Aristotle’s theory of earth, wind, fire, and water was believed until the early 1800’s. ...
... Aristotle’s theory of earth, wind, fire, and water was believed until the early 1800’s. ...
Unit 3 Review
... It tells us that electrons exist in 3-D space around the nucleus, it can tell us the probability of where an electron is about 90% of the time ...
... It tells us that electrons exist in 3-D space around the nucleus, it can tell us the probability of where an electron is about 90% of the time ...
Chapter 4 Atomic Structure
... the atoms, and they still have properties of that element If you could line up 100,000,000 copper atoms in a single file, they would be approximately 1 cm long Despite their small size, individual atoms are observable with instruments such as scanning tunneling (electron) microscopes ...
... the atoms, and they still have properties of that element If you could line up 100,000,000 copper atoms in a single file, they would be approximately 1 cm long Despite their small size, individual atoms are observable with instruments such as scanning tunneling (electron) microscopes ...
Some isotopes - Red Hook Central School District
... • They wanted to change Pb (82 protons) into Au (79 protons) • To achieve this would have meant removing 3 protons from the Pb atom’s nucleus • Alchemists would have needed to do NUCLEAR chemistry ...
... • They wanted to change Pb (82 protons) into Au (79 protons) • To achieve this would have meant removing 3 protons from the Pb atom’s nucleus • Alchemists would have needed to do NUCLEAR chemistry ...
Document
... ______ b (halogen) 15) The Noble Gases are a very reactive group of mostly nonmetals whose atoms gain or share one electron in chemical reactions. a) True b) False ______ b (metals) 16) Nonmetals are good conductors of heat and electricity. a) True b) False ______ b (increasing) 17) From left to rig ...
... ______ b (halogen) 15) The Noble Gases are a very reactive group of mostly nonmetals whose atoms gain or share one electron in chemical reactions. a) True b) False ______ b (metals) 16) Nonmetals are good conductors of heat and electricity. a) True b) False ______ b (increasing) 17) From left to rig ...
World of
... Always us a CAPITAL letter for the first letter in element. Use lower case if there is a second letter. – Ex: Hydrogen = H – Gold = Au ...
... Always us a CAPITAL letter for the first letter in element. Use lower case if there is a second letter. – Ex: Hydrogen = H – Gold = Au ...
Unit 7: Atomic Theory
... charge is concentrated. This core he called the nucleus. He believed that the rest of the atom was mainly empty space with negative electrons spread throughout. He called this part of the atom the electron cloud. •Rutherford explains his results using the above model for his atom: ...
... charge is concentrated. This core he called the nucleus. He believed that the rest of the atom was mainly empty space with negative electrons spread throughout. He called this part of the atom the electron cloud. •Rutherford explains his results using the above model for his atom: ...
PHYSICAL SCIENCE -- CHAPTER 10 READING GUIDE
... 16. The best model of the atom is referred to as the electron _______ or ______________ model of the atom. 17. Can we describe the motion of the electron in the atom? _____ Instead, we can only refer to the __________________ of finding the electron at any given location. 18. Your text suggests visu ...
... 16. The best model of the atom is referred to as the electron _______ or ______________ model of the atom. 17. Can we describe the motion of the electron in the atom? _____ Instead, we can only refer to the __________________ of finding the electron at any given location. 18. Your text suggests visu ...
Atoms
... In the center are circles. Each circle represents a single neutron or proton. Protons should have a plus (+) or P written on them. Neutrons should be blank or have an N. In a circle around the nucleus are the electrons. Electrons should have a minus sign (-) or an e. ...
... In the center are circles. Each circle represents a single neutron or proton. Protons should have a plus (+) or P written on them. Neutrons should be blank or have an N. In a circle around the nucleus are the electrons. Electrons should have a minus sign (-) or an e. ...
Atoms - McEachern High School
... – The first energy level (or ring around the nucleus) only can hold 2 electrons – Once the first ring is “full”, the next set of electrons will begin to fill in to a new energy level. – With the exception of the first energy level, All outer energy levels only wants to have 8 electrons. • This is ca ...
... – The first energy level (or ring around the nucleus) only can hold 2 electrons – Once the first ring is “full”, the next set of electrons will begin to fill in to a new energy level. – With the exception of the first energy level, All outer energy levels only wants to have 8 electrons. • This is ca ...
atomic number
... Neutral atoms have the same number of protons and electrons. Ions are charged atoms. -cations – have more protons than electrons and are positively charged -anions – have more electrons than protons and are negatively charged ...
... Neutral atoms have the same number of protons and electrons. Ions are charged atoms. -cations – have more protons than electrons and are positively charged -anions – have more electrons than protons and are negatively charged ...
The Atom
... - electrons move in orbits around the nucleus ( just like a solar system) - orbits or energy levels are located at certain levels from the nucleus _________________________- electrons do not move in a perfect orbit, - only a prediction can be made where an electron will be __________________________ ...
... - electrons move in orbits around the nucleus ( just like a solar system) - orbits or energy levels are located at certain levels from the nucleus _________________________- electrons do not move in a perfect orbit, - only a prediction can be made where an electron will be __________________________ ...
Atoms, Molecules and Ions
... 1. Atoms make up all matter. 2. The atoms of one element are different from the atoms of another element. 3. Atoms combine in definite ratios to make compounds. 4 Combinations of atoms in compounds can change ...
... 1. Atoms make up all matter. 2. The atoms of one element are different from the atoms of another element. 3. Atoms combine in definite ratios to make compounds. 4 Combinations of atoms in compounds can change ...
Particulate View of Matter
... Ionic Bonds: (Cation / Anion) Gain or Lose electrons Usually +1, +2 or -1, -2 (sometimes +/-3) Opposite ends of the periodic table ▪ Metals and nonmentals ...
... Ionic Bonds: (Cation / Anion) Gain or Lose electrons Usually +1, +2 or -1, -2 (sometimes +/-3) Opposite ends of the periodic table ▪ Metals and nonmentals ...
All of these can affect the rate at which a
... 58. If two covalently bonded atoms are identical, the bond is A coordinate covalent B nonpolar covalent. C polar covalent. D nonionic. 59. A ____ shows the types and numbers of atoms joined in a single molecule of a molecular compound. A ionic bond B molecular formula. C chemical formula. D covalent ...
... 58. If two covalently bonded atoms are identical, the bond is A coordinate covalent B nonpolar covalent. C polar covalent. D nonionic. 59. A ____ shows the types and numbers of atoms joined in a single molecule of a molecular compound. A ionic bond B molecular formula. C chemical formula. D covalent ...
Unit 2 Test Review - Liberty High School
... Matter and Atomic Structure Complete the following problems to help prepare you for you Unit 2 Test. You more than likely will want to answer these questions on a separate piece of paper (unless you can write microscopically). In addition to these problems, review your notes, assignments (#29-44), l ...
... Matter and Atomic Structure Complete the following problems to help prepare you for you Unit 2 Test. You more than likely will want to answer these questions on a separate piece of paper (unless you can write microscopically). In addition to these problems, review your notes, assignments (#29-44), l ...
Atomic Structure and Periodic Table Review WS
... Our model of the atom continues to evolve as new discoveries are made. The first atomic model that was based on scientific experiments came from John Dalton. He believed that each element had a smallest subunit, which he called the atom. He believed the atom could not be subdivided into smaller part ...
... Our model of the atom continues to evolve as new discoveries are made. The first atomic model that was based on scientific experiments came from John Dalton. He believed that each element had a smallest subunit, which he called the atom. He believed the atom could not be subdivided into smaller part ...
Atomic Theory Powerpoint
... Thomson (English 1897) did more experiments to actually make the discovery he found ratio of charge of this particle to this mass of the particle since the ratio stayed constant for any metal that contained it, it must be the same in all of the metals ...
... Thomson (English 1897) did more experiments to actually make the discovery he found ratio of charge of this particle to this mass of the particle since the ratio stayed constant for any metal that contained it, it must be the same in all of the metals ...
ATOMS AND ELEMENTS Evolution of Atomic Theory
... ! We symbolize this ion as Al3+. ! Note that losing electrons is indicated with +, and gaining electrons is indicated with -. ...
... ! We symbolize this ion as Al3+. ! Note that losing electrons is indicated with +, and gaining electrons is indicated with -. ...
Period Table Properties and Trends Powerpoint 10-21-14
... • Group 1 = 1 Ve• Group 2 = 2 Ve• Group 13 = 3 Ve• Group 14 = 4 Ve• Group 15 = 5 Ve• Group 16 = 6 Ve• Group 17 = 7 Ve• Group 18 = 8 Ve• We will learn the Transition Elements later! ...
... • Group 1 = 1 Ve• Group 2 = 2 Ve• Group 13 = 3 Ve• Group 14 = 4 Ve• Group 15 = 5 Ve• Group 16 = 6 Ve• Group 17 = 7 Ve• Group 18 = 8 Ve• We will learn the Transition Elements later! ...
Atom Notes Outline - Sewanhaka Central High School District
... 3. Find the following with regard to Nitrogen-14: Mass #: _______________ Atomic #: ______________ # of protons: ____________ # of neutrons: ____________ # of electrons: _____________ 4. An atom has 15 protons and 16 neutrons. What is its atomic #? _______________ What is its mass # ? ______________ ...
... 3. Find the following with regard to Nitrogen-14: Mass #: _______________ Atomic #: ______________ # of protons: ____________ # of neutrons: ____________ # of electrons: _____________ 4. An atom has 15 protons and 16 neutrons. What is its atomic #? _______________ What is its mass # ? ______________ ...
600 $600
... As one moves down the elements in the first column of the periodic table, the A. Atomic number of the elements increases. ...
... As one moves down the elements in the first column of the periodic table, the A. Atomic number of the elements increases. ...