14 Si Silicon 28,085 u

Silicon

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Период
3
Группа
14
Блок
p-Блок
Фаза (СТУ)
Solid

Silicon is the second most abundant element in Earth's crust after oxygen. It is the foundation of modern electronics and semiconductor technology.

Внешний вид: Crystalline, reflective with bluish tinge

Физические свойства

Атомная масса 28.085 u
Плотность 2.3296 g/cm³
Температура плавления 1413.8 °C
Температура кипения 3264.8 °C
Фаза при СТУ Solid
Атомный радиус 111.0 pm

Электронные свойства

Электроотрицательность 1.9
Энергия ионизации 786.5 eV
Сродство к электрону 133.6 eV
Валентные электроны 4

Электронная конфигурация

Конфигурация [Ne] 3s² 3p²

Electron Shell Configuration

Silicon electron shell configuration Si 2e⁻ 8e⁻ 4e⁻

Position in Periodic Table

Silicon position in the periodic table Si

Открытие

Открыт: Jons Jacob Berzelius
Год: 1824

Блок и период

Период

Периодическая таблица

Лантаниды Актиниды

Compounds Containing Silicon

Больше Металлоид

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Frequently Asked Questions

What is Silicon?
Silicon (Si) is a chemical element with atomic number 14. It is a solid at standard temperature and pressure, classified as a металлоид.
What are the key properties of Silicon?
Silicon has an atomic mass of 28.085 u, density of 2.3296 g/cm³, melting point of 1413.8°C, boiling point of 3264.8°C.
What is the electron configuration of Silicon?
The electron configuration of Silicon is [Ne] 3s2 3p2. It is in the p-block of the periodic table.
Who discovered Silicon?
Silicon was discovered by Jons Jacob Berzelius in 1824.
What is the electronegativity of Silicon?
Silicon has an electronegativity of 1.9 on the Pauling scale.