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Chemistry
ho electrons are there in a silicon atoms?
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Hmmm. How many electrons in Silicon atoms? In each atom, there are 14 protons, and 14 electrons.
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B) if you are holding a piece of Silicon that weighs 28.1 gram (atoms mass of Silicon is 28.1) how many silicon atoms are you
Top answer:
moles=mass/atomicmass number atoms= avagradro's number * moles
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Which phrase describes valence electrons?
A: electrons that are exchanged between atoms B: the electrons in an atoms outermost
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B: the electrons in an atoms outermost energy level
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28.09 g of silicon contains 6.02 1023 silicon atoms. What is the mass in grams of 1.06 1025 silicon atoms?
Top answer:
See your post above.
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28.09 g of silicon contains 6.02 1023 silicon atoms. What is the mass in grams of 1.06 1025 silicon atoms?
Can you help me
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Thank you Dr. Bob
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Why do scientists sometimes discuss the possibility of silicon as a basic element for life?(1 point) Responses Silicon has an
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Silicon has an outer shell of electrons that is similar to carbon and is similar in atomic mass to
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Which phrase describes valence electrons?(1 point) Responses electrons that are exchanged between atoms electrons that are
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the electrons in an atom’s outermost energy level
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Which is true? (1 point)
A. Electrons are mixed mostly evenly within atoms. B. Electrons orbit in fixed places around the nuclei
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C. a compound
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Which pair of elements has atoms with the same number of valence electrons? (1 point) Responses astatine (At) and radon (Rn)
Top answer:
silicon (Si) and germanium (Ge)
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Convert 3.01 x 10^23 atoms of silicon to moles of silicon.
on my paper i have the equations moles S = 3.01 x 10^23 atoms x 1
Top answer:
use your calculator. Amazingly, in my head, it looks like a half a mole.
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Which statement correctly describes a covalent bond?
The atoms' valence electrons combine to form a network of bonds. Valence
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The atoms' valence electrons are shared between the atoms.
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