To count the number of valence electrons we look at the electronic configuration and add the electrons form the electronic shell with the highest principal quantum number.

Rb: [Kr] 5s¹ - 1 valence electron

Xe: [Kr] 5s² 4d¹⁰ 5p⁶ - 8 valence electrons

Sb: [Kr] 5s² 4d¹⁰ 5p³ - 5 valence electrons

I: [Kr] 5s² 4d¹⁰ 5p⁵ - 7 valence electrons

In: [Kr] 5s² 4d¹⁰ 5p¹ - 3 valence electrons

Rank from most to fewest valence electrons:

Xe > I > Sb > In > Rb

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3 years ago

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A student measures the mass of a 10m^3 block of gold to be 500 kg what is the density of the gold

Anuta_ua [19.1K]

Answer:

d = 50 kg/m³

Explanation:

density = $\frac{mass}{volume}$

mass = 500 kg

volume = 10m³

$\frac{500}{10}$ = 50

d = 50 kg/m³

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2 years ago

On a hot day, a student places a glass of cold lemonade on a table outdoors. After a few minutes, water droplets have formed on

PolarNik [594]

Answer:

ye but sdfajkd tryng to play me

Explanation:

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3 years ago

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