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goblinko [34]
3 years ago
8

Atoms of elements that are in the same group have the same number of

Chemistry
1 answer:
Karo-lina-s [1.5K]3 years ago
4 0
They have the same number of valence electrons / outermost shell electrons.
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How do you find moles
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A mole is equivalent to 6.02 x 10^23 molecules at STP. Use a conversion factor like the following.
Example: The initial value x  The value you are trying to convert to
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3 years ago
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Name the following compound: <br> C5Si7
skad [1K]

Answer:

Pentacarbon heptasilicide.

Explanation:

In order to name the following compound, we need to identify whether it is molecular or ionic.

Molecular compounds consist of non-metal atoms, while ionic compounds would have metal cations in their composition.

In the given compound, C_5Si_7, we have two non-metals, carbon and silicon, meaning we should follow the molecular compound naming rules. The rules involve using prefixes to state the number of individual atoms.

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The theory of evolution was proposed by Darwin. 
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Significant figures
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