## What is the proton of Si 28?

Solution: The atomic number of silicon is 14. Therefore, 28Si has 14 p+ , 14 eñ , and 14 no (28 – 14). 29Si has 14 p+ , 14 eñ , and 15 no (29 – 14). 30Si has 14 p+ , 14 eñ , and 16 no (30 – 14).

What element mass number is 28?

Nickel
The elements of the periodic table sorted by atomic mass

Atomic Mass Name chemical element number
55.845 Iron 26
58.6934 Nickel 28
58.9332 Cobalt 27
63.546 Copper 29

What is the atomic number of silicon?

14
Silicon/Atomic number

### What is the difference between 28 Si and 29 Si?

Explanation: The abundance of Si-28 is 92.23%. Si-29 is 4.68% and Si-30 is 3.09%. Because most Si atoms have a mass of 28 amu, the average mass of all silicon atoms is very close to 28.

What is the percentage of SI 30?

70 percent; and silicon-30, 3.09 percent. Five radioactive isotopes are known.

What has atomic number 14 and mass number 28?

silicon
For example, silicon has 14 protons and 14 neutrons. Its atomic number is 14 and its atomic mass is 28.

#### What is the coolest element?

Liquid helium is literally the coolest element, forming only at -269 degrees Celsius. What’s cooler than cool? LIQUID HELIUM.

What is the mass of silicon-28 29 30?

28.086amu
They have mass numbers of 28, 29 and 30. The average atomic mass of silicon is 28.086amu.

What is the percentage of Si 30?

## What is the symbol for silicon-28?

28Si
Chemical Identifiers

Linear Formula 28Si
IUPAC Name silicon-28
SMILES [28Si]
InchI Identifier InChI=1S/Si/i1+0
InchI Key XUIMIQQOPSSXEZ-IGMARMGPSA-N

What is the number of protons in Silicon?

Number of protons in Silicon is 14. Atomic weight of Silicon is 28.085 u or g/mol. Melting point of Silicon is 1410 °C and its the boiling point is 2355 °C.

How many neutrons and electrons are in silicon-28?

Silicon-28 is composed of 14 protons, 14 neutrons, and 14 electrons. Silicon-29 is composed of 14 protons, 15 neutrons, and 14 electrons. Silicon-30 is composed of 14 protons, 16 neutrons, and 14 electrons. The number of electrons in an electrically-neutral atom is the same as the number of protons in the nucleus.

### What is the atomic weight of silicon Si?

Atomic weight of Silicon is 28.085 u or g/mol. Melting point of Silicon is 1410 °C and its the boiling point is 2355 °C.

Which is the chemical symbol for the element silicon?

Silicon is a chemical element with atomic number 14 which means there are 14 protons and 14 electrons in the atomic structure. The chemical symbol for Silicon is Si. Silicon is a hard and brittle crystalline solid with a blue-grey metallic lustre, it is a tetravalent metalloid and semiconductor.