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Atomic number and mass number
To find the number of protons, electrons and neutrons in an atom, just follow these easy steps:
Step 1 - Gather Information
Use the Table of Elements to find your element's atomic number and atomic weight.
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Finding Atomic Number, Mass Number, Number of Protons and Number of Electrons of an Atom
26550 Finding Atomic Number, Mass Number, Number of Protons An atom of Bi contains 126 neutrons. What is the atomic number, mass number, number of protons and number of electrons? An atom of Bi contains 126 neutrons.
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Protons and Neutrons in Nucleus
49748 Protons and Neutrons in Nucleus I need some help in determining the number of protons and the number of neutrons in the nucleus of the following atoms and the number of electrons in their first and quantum shells:
10/5B 14/6C 3/2He 40/19K
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Atoms, subatomic particles, neutrons, protons, electrons
F, N, O, Ne, Mg The periodic table is key to this type of question. You should know that atomic number corresponds to the number of protons (and in a neutral, "uncharged" atom the number of electrons too).
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Chemical elements
50692 Chemical Elements Symbols Give the chemical symbol and number of protons, neutrons, and electrons for:
a) lead with atomic mass of 206
b) hydrogen with atomic mass of 2
c) zinc with atomic mass of 65
a) Lead (Pb): Protons=Electrons=82, Neutrons
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general chemistry multiple choice
particles (protons, neutrons, and
electrons) all have essentially the same mass
Question 6
An atom of the most common isotope of gold, 197Au, has _____
protons, _____ neutrons, and _____ electrons.
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Atom Gains or Loses Electrons
Hence, in an atom the number of electrons must be equal the number of protons. When an atom loses or gains an electron (via chemical reaction, radiation etc), the atom becomes a charged ion.
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Charge, q, on nucleus
So while each element have a specific unique number of electrons and protons, the number of neutrons for each element varies (different number of neutrons does not violate the "zero total charge" of the atom rule).
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Chemical Properties
42319 Chemical Properties Which of the following is true of Cu-36? It has ________.
a. 29 electrons
b. 63 protons
c. 63 neutrons
d. 29 neutrons. the answer is a.
Explanation: The atomic number of Cu is 29, which means it has 29 protons.