| Property Name Property Value Reference | Formal Charge 0 Computed by PubChem | Complexity 0 Computed by Cactvs 3.4.6.11 (PubChem release 2019.06.18) |
|---|
What is the symbol of silicon-28?
| Compound Formula 28 Si | Molecular Weight 27.977 g/mol | Appearance White powder | Melting Point 1610 °C | Boiling Point N/A |
|---|
What is the atomic number of silicon-28?
| Group 14 1414°C, 2577°F, 1687 K | Period 3 3265°C, 5909°F, 3538 K | Block p 2.3296 | Atomic number 14 28.085 | State at 20°C Solid 28 Si, 30 Si |
|---|
How many electrons does Silicon-28 have?
Silicon-28 is composed of 14 protons, 14 neutrons, and
14 electrons
.
What subatomic particle is silicon-28?
28 protons
, 34 neutrons, 28 electrons
5 electrons, mass number 10.
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 use of silicon 28?
Silicon is used
in glass as
silicon dioxide (SiO2). Silicon carbide (SiC) is one of the hardest substances known and used in polishing. Also the crystalline form of silicon is used in semiconductors.
What is the coolest element?
Liquid helium
is literally the coolest element, forming only at -269 degrees Celsius.
What is the color of silicon?
Pure silicon is a hard,
dark gray solid
with a metallic lustre and with a octahedral crystalline structure the same as that of the diamond form of carbon, to which silicon shows many chemical and physical similarities.
Is silicon a metal?
Silicon the semiconductor
Quartz, an abundant ingredient in sand, is made up of non-crystallized silica. Silicon is neither metal nor non-metal; it’s
a metalloid
, an element that falls somewhere between the two.
What is the charge of silicon?
| Number Element Charge | 14 silicon 4+, 4- | 15 phosphorus 5+, 3+, 3- | 16 sulfur 2-, 2+, 4+, 6+ | 17 chlorine 1- |
|---|
What has 33 protons and 42 neutrons?
| Name Arsenic | Atomic Mass 74.9216 atomic mass units | Number of Protons 33 | Number of Neutrons 42 | Number of Electrons 33 |
|---|
What is the Lewis dot structure for silicon?
Silicon is in group 14 and period 3 of the periodic table and has
four valence electrons
in its Lewis structure. The four valence electrons means that silicon can bond in a way similar to carbon.
Which subatomic particle is the lightest?
Electron
, lightest stable subatomic particle known. It carries a negative charge of 1.602176634 × 10
− 19
coulomb, which is considered the basic unit of electric charge. The rest mass of the electron is 9.1093837015 × 10
− 31
kg, which is only
1
/
1,836
the mass of a proton.
What is the nuclear symbol of SI?
| Element Name Silicon | Element Symbol Si | Atomic Number 14 |
|---|
What is the percentage of SI 30?
Natural abundance of Si-28 is 92.23% and of Si-30 is
3.1%
.
