# FAQ: How many electrons can phosphorus hold?

The atomic number of P is 15. A neutral phosphorus atom has 15 electrons.

Any s subshell can hold up to 2 electrons; p, 6; d, 10; and f, 14.

Subshell Maximum Number of Electrons
s 2
p 6
d 10
f 14

31-Jul-2021

How many energy levels does phosphorus have?

• Phosphorus Atomic Structure. Number of Energy Levels: 3. First Energy Level: 2. Second Energy Level: 8. Fourth Energy Level: 5.

## Does phosphorus have 15 electrons?

So for the element of PHOSPHORUS, you already know that the atomic number tells you the number of electrons. That means there are 15 electrons in a Phosphorus atom. Looking at the picture, you can see there are two electrons in shell one, eight in shell two, and five in shell three.

## Can there be more than 8 electrons in a shell?

It is commonly used to determine the Lewis structure of molecules. However, the octet rule is not the end of the story. The main exception is the family of hypervalent molecules, in which a main group element nominally has more than 8 electrons in its valence shell.

## How many electrons does phosphorus have in its valence shell?

The highest-numbered shell is the third shell, which has 2 electrons in the 3s subshell and 3 electrons in the 3p subshell. That gives a total of 5 electrons, so neutral phosphorus atoms have 5 valence electrons.

## How many electrons are in the first energy level of phosphorus?

there are 2 electrons at the first energy level, and 8 at the second energy level.

## How many electrons are present in a phosphorus 3+ atom?

P (Phosphorus) has an atomic number of 15. Therefore, it has 15 protons. A charge of -3 indicates that it has gained 3 electrons. Therefore, it has 18 electrons.

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## How are 15 electrons arranged in a phosphorus atom?

When we write the configuration we’ll put all 15 electrons in orbitals around the nucleus of the Phosphorus atom. In writing the electron configuration for Phosphorus the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the next 2 electrons for Phosphorous go in the 2s orbital.

## How does phosphorus become stable?

Because of the relatively weak intermolecular attractions (van der Waals forces) between the separate P4 molecules, the solid melts easily at 44.1 °C (111.4 °F) and boils at about 280 °C (536 °F). This may prove to be the most stable form of phosphorus, despite the relative difficulty in its preparation.

## What element has 15 protons and 15 neutrons?

Name Phosphorus
Atomic Mass 30.974 atomic mass units
Number of Protons 15
Number of Neutrons 16
Number of Electrons 15

## Why is 3rd shell 8 or 18?

In this sense the third shell can hold 8 electrons. In this sense the third shell can hold a total of 18 electrons. So the third shell can be considered to hold 8 or 18 electrons but in total the third shell can hold 18 electrons.

## Can hold up to 2 electrons?

The general formula is that the nth shell can in principle hold up to 2 (n2) electrons. Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight ( 2 + 6) electrons, the third shell can hold up to 18 ( 2 + 6 + 10) and so on.

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## Can phosphorus have more than 8 valence electrons?

Unlike atoms from periods one and two that only have the s and p orbitals (total of 8 valence electrons ), atoms like phosphorus, sulfur, and chlorine can have more than 8 electrons because they are not restricted to the s and p orbitals and have a d orbital for additional electrons needed for bonding.

## Why does phosphorus have a valence of 5?

The valency of 5 is due to exitation of an electron from 3s orbitals to 3d orbital. It contains empty 3d orbitals so phosphorus can expand its octet by exciting on electron from 3s to 3d. Hence phosphorus can show valency 3 and 5 both.

## Why is the Valency of phosphorus 3 and 5 both?

Phosphorous shows both the valencies 3 and 5. Phosphorous with valency 3: With three unpaired electrons in three p orbitals, phosphorous shows valency 3, like in case of compound PCl3. Thus, phosphorous atom undergoes sp 3 d hybridisation to form five equivalent sp3d orbitals each containing one unpaired electron.

## How many electrons are in the outermost shell of phosphorus?

According to the periodic table above, phosphorus belongs to Group 5A. Therefore, Its valence electrons should be 5. The outermost orbitals, 3s2 3p3, contains 5 electrons. Thus, valence electrons for P is 5.