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If an atom has an atomic number of 15 and an atomic mass of 31, how many protons, neutrons and electrons does the atom contain?
The for any element is the number of protons in its atomic nuclei. In a neutral atom, the number of electrons are the same as the number of protons. The...
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A carbon-12 atom has 6 protons, 6 neutrons, and 6 electrons. How many protons does a carbon-14 atom have?
carbon-12 and carbon-14 are of the same element, carbon. this means that they have the same number of protons and the same number of electrons - just different numbers of...
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An atom has an atomic number of 79 and an atomic mass of 197. Once this atom enters into an ionic bond, it has how many proton, neutrons, and electrons?
And we don't even have to know that the element is gold. If $Z$ $=$ $79$, there are 79 positively charged nuclear particles, 79 protons, in the nucleus. If 79...
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$"Atom W has 9 protons and 9 neutrons, Atom X has 8 protons and 9"$ $"neutrons. Atom Y has 9 protons, and 9 neutrons. Atom Z has 10 protons"$
$"and 10 neutrons."$
What are the isotopes?
And $Z$ defines the identity of the element: $Z=1,H;Z=2,He;..........Z=6,C;........Z=37, Ru...........$ You don't have to remember these numbers, because a Periodic Table will be supplied to you in every test of...
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If an atom has an atomic number of 9 and an atomic mass number of 19, how many protons, neutrons, and electrons does it have?
The is the number of protons $("p"^+")$. In a neutral atom, the number of electrons $("e"^(-)")$ equals the number of protons. is the sum of the protons and neutrons $("n"^0")$...
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How do you identify the atomic number, atomic mass, number of protons, number of neutrons, and number of electrons in an element?
See
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All the atoms of a particle element have an equal number of protons and neutrons (Z=N). Which one is true?
A) The atomic weight must be a whole number.
B) The mass number must be exactly twice the atomic number for each atom.
The answer is B) The must be exactly twice the for each atom. The number of protons is the atomic number of an element. The mass number is the sum...
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How many protons, neutrons, and electrons does a magnesium atom with a mass number of 25 contain?
$Z$ refers to the number of (nuclear) protons. The $Mg$ nucleus contains 12 positively charged particles (how can I make this statement?). To balance this charge, (the metal is electrically...
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How many protons, electrons, and neutrons does a neutral atom of an element with atomic number 48 and mass number 120 contain?
The mass of an atom is the sum of massive nuclear particles, protons (as above), and neutrons, neutrally charged, massive nuclear particles. Here the number of neutrons $=$ $120-48=?$ In...
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Sally is making a model of a Mg atom with an atomic mass number of 24. She has balls for the protons, neutrons, and electrons. She has added 6 neutrons to her model. How many more neutrons does she need to add to complete her neutral atom of magnesium?
$Z$, $"the atomic number"$ of magnesium is 12. This means that there are 12 positively charged nuclear particles. This defines the particle as a magnesium atom. To represent the $""^24Mg$...
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