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Isotope

Chem

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Geometry
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Chemistry
Nature
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Nuclear physics
Chemical properties
Atoms
Nucleons
Atomic number
Isotope
Atom
Chemical element
Neutron

Protons, Neutrons, and Electrons Practice Worksheet Fill in the blanks in the following worksheet. Please keep in mind that the isotope represented by each space may NOT be the most common isotope or the one closest in atomic mass to the value on the periodic table. Atomic symbol Atomic number Protons Neutrons Electrons Atomic mass B 6 11 24 31 37 39 89 29 35 43 100 Pb 207 102 70 89 225 Mo 53 81 206 100 159 No 261 Yb 172 106 159 Finding Protons, Neutrons, and Electrons of Elements

Basic Biochemistry

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Biology
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Nuclear chemistry
Radioactive tracer
Isotope
Chemical element
Iodine
Neutron
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AP Biology Biochemistry

Atomic Structures Atoms are basic units of matter Protons (+1) , Neutrons (0), Electrons (-1) Depending on their energy levels, they are in different states. Ground state: At lowest possible potential energy. Excited state: At any state where the system is at higher than the minimum. Isotopes: atoms of one element that vary in neutrons. Are all chemically identical Radioisotopes: decay at a rate known as half-life, often used in medicine. Tracers: used to TRACE certain chemicals in natural pathways Ex: Iodine (radioactive) to give information about thyroid gland metabolism. Bonding In biology, the two main types are Ionic and Covalent Ionic Bonds Transfer of electrons Receiver is called anion (a negative ion) Donor is called the cation Covalent Bonds
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