# how many energy levels does phosphorus have

## How Many Energy Levels Does Phosphorus Have?

there are 2 electrons at the first energy level, and 8 at the second energy level. there are 15 electrons in total, there must be 5 electrons at the third energy level. there are 3 energy levels, so the electrons at the third are outer, or valence, electrons.Apr 11, 2018

## How many energy levels does each element have?

Number of energy levels in each period

The atoms in the first period have electrons in 1 energy level. The atoms in the second period have electrons in 2 energy levels. The atoms in the third period have electrons in 3 energy levels. The atoms in the fourth period have electrons in 4 energy levels.

## How many energy levels there are?

7 energy levels
Electron Shells, Subshells & Atomic Orbitals

The highest energy level number (1 through 7) for the electrons in an atom corresponds to the period (or row) in the periodic table to which that atom belongs. Because there are 7 periods in the table, there are 7 energy levels.

## What is the last energy level filling phosphorus?

However, phosphorus can promote an electron from the occupied 3s orbital to an empty 3d orbital. In this excited state, the phosphorus atom has 5 half-filled orbitals in its outermost energy level, i.e. its third energy level.

## Which elements has 7 energy levels?

Electrons
Atomic Number Element Energy Levels or “shells”
7 Nitrogen (N) 5
8 Oxygen (O) 6
9 Fluorine (F) 7
10 Neon (Ne) 8

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

8
there are 2 electrons at the first energy level, and 8 at the second energy level. there are 15 electrons in total, there must be 5 electrons at the third energy level.

## How many energy levels does boron have?

Have you seen where boron is on the periodic table? Try period 2. Therefore, it has two energy levels, n=1 and n=2. You can subdivide that into its various energy sublevels.

## What are the 4 energy levels?

Orbitals and Electron Capacity of the First Four Principle Energy Levels
Principle energy level (n) Type of sublevel Number of orbitals per level(n2)
4 s 16
p
d
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## What element has 4 energy levels?

Which element has four energy levels (electron shells)? Bromine is in period (row) 4 on the periodic table. This means it has 4 energy levels.

## How many energy levels does bromine have?

Bromine Atomic and Orbital Properties
Atomic Number 35
Number of Neutrons 45
Shell structure (Electrons per energy level) [2, 8, 18, 7]
Electron Configuration [Ar] 3d10 4s2 4p5
Valence Electrons 4s2 4p5

## Does phosphorus have 3 energy levels?

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.

## How many rings phosphorus have?

Two Fused Five-membered Heterocyclic Rings: (i) Classical Systems.

15

## How many energy levels are in neon?

A: A neon atom has two electrons in energy level I and its remaining eight electrons in energy level II, which can hold only eight electrons. This means that is outermost energy level is full. Therefore, a neon atom is very stable.

## How many energy shells are there?

Each successive shell can only hold a certain number of electrons. The innermost shell is filled first. This shell can contain a maximum of two electrons. The second shell can hold a maximum of eight electrons.

Electron shells.
Energy shell Maximum number of electrons
Second 8
Third 8

## How many energy levels does nitrogen have?

In the Bohr model, a nitrogen atom has a central nucleus, composed of seven protons and seven neutrons, surrounded by seven electrons. Two of the electrons are in the first energy level while the other five are in the second energy level. Further studies showed that the Bohr model wasn’t as accurate as it could be.

## How many electrons does phosphorus have in its valence energy level?

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.

2, 8, 5

## How many electrons are there in the 3rd principal energy level N 3 of a phosphorus atom?

Above that, the third energy level can hold up to 18 electrons.

## How many energy shells does boron have?

Boron is element number 5 in the Periodic Table. That means it contains five protons and five electrons. They are arranged with two electrons in the first energy shell and three in the second.

## How many energy levels does gallium have?

Gallium Atomic and Orbital Properties
Atomic Number 31
Number of Neutrons 39
Shell structure (Electrons per energy level) [2, 8, 18, 3]
Electron Configuration [Ar] 3d10 4s2 4p1
Valence Electrons 4s2 4p1

## How many neutrons does bromine have?

45 neutrons
a) How many neutrons does the atom of bromine have? The mass number = protons + neutrons. Bromine has a mass number of 80 and 35 protons so 80-35 = 45 neutrons.

## Which element has 4 valence electrons and 3 energy levels?

Why is the Periodic Table Arranged the Way it Is? CARBON FAMILY: All have 4 VALENCE ELECTRONS (electrons in the outer energy level) Carbon is a NONMETAL.

## How many electrons are in each energy level?

Each principal energy level can contain up to 2n2 electrons, where n is the number of the level. Thus, the first level can contain up to 2 electrons, 2(12) = 2; the second up to 8 electrons, 2(22) = 8; the third up to 18, 2(32) = 18; and so on.

## How many orbitals are in energy level 6?

So, each s sublevel can have two electrons, each p sublevel can hold six electrons, etc. The chart below shows the number of electrons per orbital and per sublevel.

Number of electrons per sublevel.
Sublevel Number of Orbitals Electrons per Sublevel
p 3 6
d 5 10
f 7 14

## How many energy levels are in calcium?

four energy levels
The atomic number of calcium is 20 which means it has 20 protons and as an atom (not an ion) it also has 20 electrons. These are in four energy levels (1 though 4) and it has the following electron configuration.

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## How many energy levels does sulfur have?

Sulfur has the atomic number 16; therefore, it has 16 protons and 16 electrons. The first energy level will fill up with two electrons. The second energy level fills up with eight electrons. That takes care of 10 out of the 16 electrons.

## How many energy levels are in oxygen?

Energy Levels of Neutral Oxygen ( O I )
J Level(cm1) Ref.
1 158.265 MG93
226.977 MG93
2 15867.862 MG93
33792.583 MG93

2,3

## How many energy levels does potassium have?

four energy levels
The potassium has four energy levels, becasue potassium has 19 electrons and 19 protons. This is because, 2 electrons occupies the first energy level, 8 electrons occupies the second energy level, again 8 electrons occupies the third energy level, and the leftover 1 electron occupies the fourth energy level.

## What is the highest energy level in bromine?

Bromine
• Br: atomic number = 35 → 35 protons & 35 electrons.
• Br: 1s22s22p63s23p64s23d104p5
• Br: [Ar] 4s23d104p5
• valence electrons: 4s23d104p5
• highest energy orbital = 4 (4s and 4p)

## How many isotopes does phosphorus have?

There are 21 isotopes of phosphorus that are recognized(1). Phosphorus-31 is naturally occuring and is stable(2). Phosphorus-26 through 30 and phosphorus-32 through 46 are artificially produced and are radioactive(2).

## How many neutrons are in phosphorus?

Phosphorus 32 (P-32) is the phosphorus isotope whose nucleus consists of 15 protons and 17 neutrons.

## A Level Chemistry – First Ionisation Energy: Phosphorus vs. Sulfur

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