1 cm of copper. This is because copper atoms are heavier than aluminum atoms.
Symbol: A symbol is a mark, sign, or word that indicates, signifies, or is understood as representing an idea, object, or relationship. For example, a red octagon is a common symbol for "STOP"; on maps, blue lines often represent rivers; and a red rose often symbolizes love and compassion.
Compound: a thing that is composed of two or more separate elements; a mixture.
For Example: water (H2O), salt (sodium chloride, NaCl), methane (CH4).
Explanation:
H - 1s¹
He - 1s²
Li - 1s² 2s¹
Be - 1s² 2s²
B - 1s² 2s² 2p¹
C - 1s² 2s² 2p²
N - 1s² 2s² 2p³
O - 1s² 2s² 2p⁴
F - 1s² 2s² 2p⁵
Ne - 1s² 2s² 2p⁶
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Answer:
The answer to your question is number 1. Pb
Explanation:
Data
10 grams of Na, C, Pb, and Ne
Process
Calculate the moles of each element
23 g of Na ----------------- 1 mol
10 g of Na ------------------- x
x = 0.43 moles of Na
20 g of Ne ---------------- 1 mol
10 g of Ne ----------------- x
x = 0.5 moles of Ne
64 g of Cu -------------- 1 mol
10 g of Cu -------------- x
x = 0.16 moles of Cu
207 g of Pb ------------- 1 mol
10 g of Pb -------------- x
x = 0.048 moles of Pb
Pb has the smallest number of moles
