Physical Science Chapter 4 Study Guide mod 5
... 2. True or false: Electrons can be found between energy levels? False 3. What is an atom’s nucleus made of? Protons neutrons and electrons What kind of charge does it have? neutral 4. When does an electron jump to a new energy level? When the electron gains or loses energy 5. List three key componen ...
... 2. True or false: Electrons can be found between energy levels? False 3. What is an atom’s nucleus made of? Protons neutrons and electrons What kind of charge does it have? neutral 4. When does an electron jump to a new energy level? When the electron gains or loses energy 5. List three key componen ...
Name: What are atoms? Atoms are the ______ building blocks of
... The ________ _________ is the number of ________ in an atom of an element. Krypton’s atomic number is ________. This tells us that an atom of krypton has _____ ____________ in its ____________. The interesting thing here is that _________ atom of krypton contains _______ protons. If an atom doesn't ...
... The ________ _________ is the number of ________ in an atom of an element. Krypton’s atomic number is ________. This tells us that an atom of krypton has _____ ____________ in its ____________. The interesting thing here is that _________ atom of krypton contains _______ protons. If an atom doesn't ...
Atoms and the PT
... compacted in the tiny positively charged nucleus accounting for most of the mass of the atom • The negatively charged electrons are small and have a relatively small mass but occupy a large volume of space outside the nucleus ...
... compacted in the tiny positively charged nucleus accounting for most of the mass of the atom • The negatively charged electrons are small and have a relatively small mass but occupy a large volume of space outside the nucleus ...
Physics and Chemistry 1501 – Nuclear Science Part I VO Atomic
... Instructor So very heavy isotopes and ones with the wrong neutron to proton ratio are unstable. We say that they are naturally radioactive. (green chalkboard on screen) VO A radioactive isotope has an unstable nucleus. To become more stable, a radioactive isotope emits a particle and changes into t ...
... Instructor So very heavy isotopes and ones with the wrong neutron to proton ratio are unstable. We say that they are naturally radioactive. (green chalkboard on screen) VO A radioactive isotope has an unstable nucleus. To become more stable, a radioactive isotope emits a particle and changes into t ...
Understanding Atomic Structure of an Element
... • Electron Shells/Orbitals – An electron has only 1/1837th the mass of an proton or neutron – Electrons move around on specific patterns outside of the nucleus (the majority of the empty space in an atom) ...
... • Electron Shells/Orbitals – An electron has only 1/1837th the mass of an proton or neutron – Electrons move around on specific patterns outside of the nucleus (the majority of the empty space in an atom) ...
N4 Atomic Structure
... Energy Level 3 can hold:18eEnergy Level 4 can hold:32eThings to remember: •The element’s period # = the # of electron shells •There can only be 2 e- in the first energy level All atoms want to have 8 electrons on their outer shells ...
... Energy Level 3 can hold:18eEnergy Level 4 can hold:32eThings to remember: •The element’s period # = the # of electron shells •There can only be 2 e- in the first energy level All atoms want to have 8 electrons on their outer shells ...
atomic numbers
... over time to become more stable. ► Half-Life: the amount of time that it takes half of a radioisotope sample to decay. ...
... over time to become more stable. ► Half-Life: the amount of time that it takes half of a radioisotope sample to decay. ...
Review Stations - ANSWER KEY - Liberty Union High School District
... 1. What is the difference between Democritus’ and Dalton’s Model of the Atom? Very similar – both thought that atoms made up everything and were very small. Democritus named them, atomos, and Dalton said they were indivisible. 2. How did Rutherford build on Thomson’s discovery? Describe each of thei ...
... 1. What is the difference between Democritus’ and Dalton’s Model of the Atom? Very similar – both thought that atoms made up everything and were very small. Democritus named them, atomos, and Dalton said they were indivisible. 2. How did Rutherford build on Thomson’s discovery? Describe each of thei ...
gained (-) or lost (+) an electron
... When an atom gains an electron and becomes more (-) because there are more negative electrons present than positive protons. (Think: “An” means NOT or Negative for Ions) ...
... When an atom gains an electron and becomes more (-) because there are more negative electrons present than positive protons. (Think: “An” means NOT or Negative for Ions) ...
Nuclear Radiation1516
... several smaller fragments. These fragments, or fission products, are about equal to half the original mass. Two or three neutrons are also emitted. The sum of the masses of these fragments is less than the original mass. This 'missing' mass (about 0.1 percent of the original mass) has been converted ...
... several smaller fragments. These fragments, or fission products, are about equal to half the original mass. Two or three neutrons are also emitted. The sum of the masses of these fragments is less than the original mass. This 'missing' mass (about 0.1 percent of the original mass) has been converted ...
Radioactivity , Fission and Fusion
... • Nuclear fission is the splitting of an atomic nucleus • There are two fissionable substances in common use in nuclear reactors, uranium 235 and plutonium 239 • For fission to occur the uranium 235 or plutonium 239 nucleus must first absorb a neutron • The nucleus undergoing fission splits into two ...
... • Nuclear fission is the splitting of an atomic nucleus • There are two fissionable substances in common use in nuclear reactors, uranium 235 and plutonium 239 • For fission to occur the uranium 235 or plutonium 239 nucleus must first absorb a neutron • The nucleus undergoing fission splits into two ...
Atoms overview quiz
... All of these scientists made contributions to the study of atomic structure. Niels Bohr studied electron orbitals. Bohr developed the classic spherical electron orbital structure. Friedrich Hund developed a "rule of maximum multiplicity" which discusses electron spins and atomic energy states. Ernes ...
... All of these scientists made contributions to the study of atomic structure. Niels Bohr studied electron orbitals. Bohr developed the classic spherical electron orbital structure. Friedrich Hund developed a "rule of maximum multiplicity" which discusses electron spins and atomic energy states. Ernes ...
atoms - SP Moodle
... Most of the volume (space) of an atom is made up of electrons Electrons have very little mass and take up very little space SO, atoms are mainly empty space We are made of atoms SO we are empty mainly made up of Empty ...
... Most of the volume (space) of an atom is made up of electrons Electrons have very little mass and take up very little space SO, atoms are mainly empty space We are made of atoms SO we are empty mainly made up of Empty ...
Atom questions
... B. Less C. The Same D. noone knows 15. NaCl would be an example of what type of chemical bond… A. Ionic B. Covalent C. Sharing D. Salt 16. The reading describes a concept called the “Happy Atom”, meaning that an atom wants…. A. To combine with Hydrogen B. Its atomic shells to be filled with electron ...
... B. Less C. The Same D. noone knows 15. NaCl would be an example of what type of chemical bond… A. Ionic B. Covalent C. Sharing D. Salt 16. The reading describes a concept called the “Happy Atom”, meaning that an atom wants…. A. To combine with Hydrogen B. Its atomic shells to be filled with electron ...
2Unit 9M.1_atomic_structure6912_Answer
... All elements are made up of atoms. The atoms of one individual element are identical in every respect, and differ from the atoms of all other elements. Atoms are made up of sub-atomic particles called protons, neutrons and electrons. Table 1 shows the relative masses and charges of these particles. ...
... All elements are made up of atoms. The atoms of one individual element are identical in every respect, and differ from the atoms of all other elements. Atoms are made up of sub-atomic particles called protons, neutrons and electrons. Table 1 shows the relative masses and charges of these particles. ...
Overall Score: _____ / 22 (each question is worth
... atom of helium, and an atom of lithium). Isotopes are version of the same element, not different elements altogether. Hydrogen, helium, and lithium have a different number of protons (because they are different elements), so they are not isotopes. ...
... atom of helium, and an atom of lithium). Isotopes are version of the same element, not different elements altogether. Hydrogen, helium, and lithium have a different number of protons (because they are different elements), so they are not isotopes. ...
Chapter 4
... 2.In Thomson’s “plum-pudding” model of the atom, the plums represent 3.An atom of gold with 79 protons, 79 electrons, and 118 neutrons would have a mass number of 4.Which subatomic particle has the least mass? 5.If an isotope of uranium, uranium-235, has 92 protons, how many protons does uranium-238 ...
... 2.In Thomson’s “plum-pudding” model of the atom, the plums represent 3.An atom of gold with 79 protons, 79 electrons, and 118 neutrons would have a mass number of 4.Which subatomic particle has the least mass? 5.If an isotope of uranium, uranium-235, has 92 protons, how many protons does uranium-238 ...
Atomic and Nuclear Terms
... ► Nuclear Reactions – A reaction that occurs whenever the number of protons or neutrons changes. • Nuclear reactions include natural and artificial transmutation, fission, and fusion. ► Transmutation – Nuclear change of one element into another. • In natural transmutations the nucleus decays spontan ...
... ► Nuclear Reactions – A reaction that occurs whenever the number of protons or neutrons changes. • Nuclear reactions include natural and artificial transmutation, fission, and fusion. ► Transmutation – Nuclear change of one element into another. • In natural transmutations the nucleus decays spontan ...
Unit 3 Study Guide
... Is this still true today? Explain. No, it is not true. In Dalton’s time technology for splitting atoms was not yet developed. 2. According to Dalton’s theory all atoms of the same element are identical in mass, size and properties. Is this still true today? Explain. Part of it is true. Atoms of the ...
... Is this still true today? Explain. No, it is not true. In Dalton’s time technology for splitting atoms was not yet developed. 2. According to Dalton’s theory all atoms of the same element are identical in mass, size and properties. Is this still true today? Explain. Part of it is true. Atoms of the ...