Test Answers on Nuclear chemistry Flashcards

Nuclear Chemistry: Unit 5

Most chemical reactions involve The exchange or shafing of electrons which does not affect the nucleus How is nuclear chemistry different than other chemical reactions? Bc it involves changes in the nucleus Transmutation When the nucleus of one element is changed into the nucleus of a different element Which means the number of protons is […]

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25.1 and 25.2 Nuclear chemistry

Marie curie and pierre curie Shied that rays emitted by the uranium atoms caused the fogging of the plates Radioactucuty Process of the fog Material that gives off suck rays Radiation Penetrating rays and particles emitted by radioactive source Nuclear reactions differ from chemical reactions Chem reaction: atoms tend to attain stable electron configuration by […]

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Chemistry Unit 6: Nuclear Chemistry

Explain how unstable nuclei releases energy. An unstable nucleus releases energy by emitting radiation during the process of radioactive decay. What is the change in atomic number with each type of radiation? Alpha Particle – Decreases atomic number by 2. Beta Particle – Increases its atomic number by 1. Gamma Ray – Does not alter […]

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Unit 11: Atomic Structure and Nuclear Chemistry

1 amu atomic mass of a proton 1 amu atomic mass of a neutron 1/1836 atomic mass of an electron +1 electrical charge of a proton -1 electrical charge of an electron inside nucleus location of a proton inside nucleus location of a neutron in the surrounding electron cloud (orbiting around the outside) location of […]

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Nuclear Chemistry Questions And Answers

Willhelm Roentgen (1845-1923) discovered X-rays, a high energy form of light (1895) Henri Becquerel (1852-1909) found that uranium ores emit radiation that can pass through objects (like x-rays) and affect photographic plates (1896) Marie Sklodowska Curie (1867-1934) Marie and Pierre worked with Becquerel to understand radioactivity. Shared a Nobel prize in physics in 1903. She […]

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Nuclear Chemistry Test Questions

nucleon protons/neutrons in atomic nuclei/nuclide nuclide atom identified by what is in the nucleus (protons/neutrons) mass defect difference between the mass of an atom and the sum of the masses of its particles. nuclear binding energy energy released when a nucleus is formed from nucleons-causes mass defect. amount of energy needed to break apart a […]

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Nuclear Chemistry

protons and neutrons atomic nuclei are made of _____________ nucleons protons and neutrons are collectively called _______ nuclide in nuclear chemistry, an atom is referred to as a(n) _________ protons and neutrons the nuclide is identified as the number of ________________ in its nucleus mass defect the difference of the masses of the protons, neutrons, […]

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10th Grade Chemistry 1H Nuclear Chemistry

nucleons protons and neutrons in the nucleus nuclide atom; identified by the number of protons and neutrons in the nucleus mass defect difference between mass of atom (determined experimentally) and sum of the masses of subatomic particles (what you’re expecting) subastomic particles electron, proton, and neutron nuclear binding energy energy released when a nucleus is […]

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Regents Chemistry Vocabulary- Nuclear Chemistry

Natural transmutation Also known as radioactive natural decay; when an unstable isotope spontaneously emits a decay particle (alpha, beta or positron) and becomes a new element Nuclear fission When a large, unstable nucleus is hit with a neutron and splits into two smaller nuclei, which release neutrons that can be used to begin another reaction. […]

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Unit 5: Nuclear Chemistry

Nuclear Radiation Particles or electromagnetic radiation emitted from the nucleus during radioactive decay Half-life The time required for half of a sample of a radioactive isotope to decay. Alpha Particle A particle made up of two protons and two neutrons, identical to a helium atom, ejected from a nucleus during a nuclear reaction Alpha Decay […]

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Unit 2: Nuclear Chemistry Test Review

Alpha Particle A positively charged particle emitted from certain radioactive nuclei; identical to a helium nucleus. Beta Particle An electron resulting from the breaking apart of neutrons in an atom. Gamma Ray A high-energy photon emitted by a radioisotope. Radioisotope An isotope that has an unstable nucleus and undergoes radioactive decay. Radioactivity The process by […]

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Nuclear Chemistry Quiz Questions And Answers

Nuclear chemistry Chemistry that involves changes of the nucleus of atoms and emittion of radiation Radiation Flow of energy (in the form of waves) through space Radioactivity A substance that is radioactive if it has the ability to emit rays of energy from an unstable nucleus Nuclear radiation Penetrating rays and particles emitted by a […]

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Section 24.1 Nuclear Chemistry

X-Ray The discovery of the ___ in 1895 Wilhelm Roentgen opened a whole new field of research Radiation The Curies discovered that some forms of matter give off ___, a combination of particles and energy Radioactivity Marie Curie named this process ___ Radioactive decay Another term used to describe the process by which one element […]

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Atoms and Nuclear Chemistry

What is an atom? The smallest part to which an element can be divided yet still be that element, building blocks of all matter What is a proton? Makeup the nucleus, has a positive charge; 1 amu What is a neutron? Part of the atom with no charge; makes up the nucleus; 1 amu What […]

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Physical Science: Nuclear Chemistry

Isotope atom that has the same number of pretons (atomic number) as another atom but a different number of neutrons Alpha Particle weakest type of nuclear radiation; consists of a helium nucleus released during alpha decay Beta Particle electron, created in the nucleus of an atom, released during beta decay Gamma Ray high-frequency electromagnetic wave […]

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chem chapter 17 nuclear chemistry

antione-henri-becquerel discovers radioactivity but called it “uranic rays” at first marie curie finds out other elements emit radioactivity and got 2 nobel peace prizes in chemistry and physics proton symbol neutron symbol electron symbol alpha radiation 1. atom emits piece of itself 2. most potential to damage other cells 3. highest ionizing power 4. low […]

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Nuclear Chemistry

Henri Becquerel Discovery of radioactivity Marie Curie Radioactivity and discovery of Po and Ra Enrico Fermi First controlled nuclear chain reaction Irene Curie Created first artificial isotope 30P Williard Libby Carbon-14 Dating Lisa Meitner Nuclear fission Ernest Rutherford First nuclear transmutation August 13, 1942 The establishment of the Manhattan Engineer district to develop and build […]

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National 5 Chemistry- Unit 3: Nuclear Chemistry

What is a radioisotope? A radioactive isotope of an element What is the relationship between the stability and the atomic number of a element? As the atomic number increases the stability decreases. What does alpha radiation consist of? A helium nucleus. Charge:+2 Mass:4 What does gamma radiation consist of? An electromagnetic spectrum wave. No charge […]

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Isotopes and nuclear chemistry

Nuclear Reaction A reaction that affects the nucleus of an atom Transmutation The transformation of atoms of one element into atoms of a different element as a result of a nuclear reaction Nuclear radiation The particles that are released from the nucleus during radioactive decay, such as neutrons, electrons, and protons Alpha particle A positively […]

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Nuclear chemistry vocabulary worksheet

Alpha particle Positively charged particle made up of two protons and two neutrons Atom Basic building block of all matter Atomic bomb This was the nuclear weapon used by the us to force japan to surrender during wwll Atomic number The number of protons Average atomic mass The weighted average of all of the isotopes […]

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Chapter 25; Nuclear Chemistry

who discovered radioactivity? Becquerel, Marie Curie, Pierre Curie radioisotope form of an atom that is unstable & loses particles from the nucleus alpha particle radiation composed of 2 protons and 2 neutrons beta particle composed of fast-moving electrons charge of a beta particle? -1 charge of an alpha particle? +2 gamma radiation high energy electromagnetic […]

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