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An atom has 9 protons and 10 neutrons. What is the atomic number, the mass number and the symbol for this element?
The is clearly $19$. You're on your own with the identity of the element. Do you think there could be a Table published somewhere that list according to their $"atomic...
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Element X has two isotopes. X-15 has 7 protons and 8 neutrons. What is the atomic number and mass number of the second isotope, which has 10 neutrons in its nucleus?
The most important thing to keep in mind here is that are atoms that have the same number of protons inside their nuclei. In other words, an isotope...
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Boron has two isotopes, boron-10 and boron-11. Boron-10 has five protons and five neutrons. How many protons and neutrons does boron-11 have? Explain.
are given by the name of the element and the . Here boron-11 means the name of the element is boron and the mass number is 11. We are...
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$"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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Would you find the number of electrons when given atomic number, mass number, and number of protons and neutrons?
Here are the rules that you MUST remember. (1) The is always equivalent to the number of protons. (2) The is the sum of number of protons and number of...
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An element has atomic number 10 and an atomic mass of 20. How many neutrons are in the atom of this element?
What is the identity of this element? What is the isotope?
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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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