Which is not a particle within an atom

Chemistry

2 answers:

Colt1911 [192]3 years ago

7 0

An ion is not a particle within the atoms

Korolek [52]3 years ago

5 0

Answer:

Ion.

Explanation:

Ions are not a particle within an atom.

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Consider the model of the nitrogen atom . Which electron configuration matches this model?

Galina-37 [17]

Answer:

The atomic number of Nitrogen is seven. So it contains seven protons and seven electrons in neutral form. Also, the electronic configuration cited above contains seven electrons among which two electrons are present in first shell and five electrons are present in valence shell respectively.

Explanation:

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3 years ago

A lead–tin alloy of composition 30 wt% Sn–70 wt% Pb is slowly heated from a temperature of 150°C (300°F).(a) At what temperature

Novay_Z [31]

Answer:

a) 231.9 °C

b) 100% Sn

c) 327.5 °C

d) 100% Pb

Explanation:

This is a mixture of two solids with different fusion point:

$Tf_{Pb}=327.5 C$

$Tf_{Sn}=231.9 C$

Given that Sn has a lower fusion temperature it will start to melt first at that temperature.

So the first liquid phase forms at 231.9 °C and because Pb starts melting at a higher temperature, that phase's composition will be 100% Sn.

The mixture will be completely melted when you are a the higher melting temperature of all components (in this case Pb), so it will all in liquid phase at 327.5 °C.

At that temperature all Sn was already in liquid state and, therefore, the last solid's composition will be 100% Pb.

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4 years ago

Select all the properties of a shield volcano listed below.

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A. Basaltic lava her u go

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3 years ago

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Based on the location of nitrogen on the periodic table how many additional electrons does a nitrogen atom need in its valence s

igor_vitrenko [27]

1 additional electron