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# How big is a silicon atom?

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Silicon has:
atomic mass 28.0855 g/mol [Wikipedia]
density 2.3290 g/cm^3 [Wikipedia]
==> 2.329000E6 g/m^3
==> 82.925E3 mol/m^3
mole 6.0221E23
==> 49.938E27 atoms per metre cubed
==> 20.025E-30 m^3 per atom
If the atom was a cube, each side would be 271E-12 metres.
If the atom was a sphere, its diameter would be 336.92E-12 metres.
If the atom was a tetrahedron, each side would be 553.87E-12 metres.
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# How many electrons are in a silicon atom?

Answer   Silicon's atomic number is 14 so it has 14 electrons. There are 2 on the first shell 8 on the second shell and 4 on the outer most shell.   There are four val

# What is the number of electrons for a silicon atom?

Silicon has 14 electrons in his neutral state.

28.086

# How many neutrons are in a silicon atom?

Silicon always has 14 protons and 14 electrons in each atom but the number of neutrons can vary from 8 to 30. This variation makes the 'isotopes' of Silicon. Silicon 28 is th

28.086

# Silicon atomic mass?

silicon is a non metal element. Atomic mass of it is 28.086.

# What is the atomic mass of the element silicon?

Silicone is a non meta element. Atomic mass of it is 28.

# How many silicon atoms are there in 1.00g of silicon?

2.14 X 1022 atoms

14

# Is silicon dioxide a atom?

No, silicon dioxide is a molecule.

28SI 14

# What is the average atomic mass for silicon?

Silicon is a non meta element. Atomic mass of it is 28.

# What type of atomic mass is silicon?

Silicone is a metal element. Atomic mass of it is 28.

# What is the atomic number foe silicon?

the atomic number of silicon is 14, it's atomic weight is 28.0855

# What is the atomicity of silicon?

Atomicity, what a charming old word. Used to mean either valency or the number of atoms in a molecule. For silicon the valency is 4. (where valency was the numebr of bonds tha

# What types of atoms are in silicon dioxide?

Silicon (a metalloid) and oxygen (a nonmetal) are the two elements that compose silicon dioxide (SiO 2 ).

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