Helium Number

  
  • Atomic number of Helium, or Protons in Helium: 2: Neutrons in Helium: 2: Electrons in Helium: 2: Symbol of Helium: He: Atomic mass of Helium: 4.002 u: Electrons arrangement in Helium or Bohr model of Helium.
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Helium 100 7440-59-7 Ingredient name% CAS number There are no additional ingredients present which, within the current knowledge of the supplier and in the concentrations applicable, are classified as hazardous to health or the environment and hence require reporting in this section. Chemical name:Helium Other means of identification. Giant Number Helium Balloons. Inflated with helium and delivered in a box. Shop / Balloons / Helium Inflated / Giant Numbers. Blue Numbers – 2 for £22.99. Atomic Number – Protons, Electrons and Neutrons in Helium. Helium is a chemical element with atomic number 2 which means there are 2 protons in its nucleus.Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z.

Helium (from Greek: ἥλιος, romanized: Helios, lit. 'Sun') is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements. Wikipedia

Substance Data

Source: TOXNET

CAS-Number

7440-59-7

Flash Point

n/a

Boiling Point

n/a

Helium Number Of Energy Levels


Emergency Response Guide No. 121

Data from the Hazardous Materials Table

Source: 49 CFR §172 (2018/07)

(3) Hazard Class

2.2
Non-toxic, non-flammable gases

(4) Identification number

(5) Packing Group

n/a

(6) Labels

(7) Special Provisions (§172.102)

(8) Packing Authorizations (§173.***)

(8A) Exceptions306see 49 CFR §173.306
(8B) Non-bulk302see 49 CFR §173.302
(8C) Bulk302, 314see 49 CFR §173.302, 314

(9) Quantity Limits

(9A) Passenger aircraft/rail75 kg
(9B) Cargo aircraft only150 kg

(10) Vessel stowage

(10A) Location

G56 transmission. A

Stowage category “A” means the material may be stowed “on deck” or “under deck” on a cargo vessel or on a passenger vessel.

Source: 49 CFR §172.101(k)

(10B) Other
85Under deck stowage must be in mechanically ventilated space.

Source: 49 CFR §176.84

Segregation Chart for Load, Transport, Storage

Helium

In this table a statement is contained for each hazard class whether the loading, transport or storage with other hazard classes is allowed, is not permitted or is restricted. The table is based on U.S.-Code 49 CFR §177.848.

Hazard Class8
7
6.1
5.2
5.1
4.3
4.2
4.1
3
2.3B
2.3A
2.2
2.1
1.6
1.5
1.4
1.3
1.1/1.2
1.1/1.2
1.3
1.4
1.5
1.6
2.1
2.2
2.3A
2.3B
3
4.1
4.2
4.3
5.1
5.2
6.1
7
8
May not be loaded, transported, or stored together in the same transport vehicle or storage facility.
Load, transport, storage together is not restricted.
Load, transport, storage together is allowed under restrictions.

Substances with similar name

UN-NumberNameHazard Class
UN 1963Helium, refrigerated liquid (cryogenic liquid)2.2

Helium (from Greek: ἥλιος, romanized: Helios, lit. 'Sun') is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements. Wikipedia

Substance Data

HeliumSource: TOXNET

CAS-Number

7440-59-7

Flash Point

n/a

Boiling Point

n/a

Emergency Response Guide No. 121

Data from the Hazardous Materials Table

Source: 49 CFR §172 (2018/07)
Helium NumberHelium number of electrons

(3) Hazard Class

2.2
Non-toxic, non-flammable gases

(4) Identification number

(5) Packing Group

n/a

(6) Labels

(7) Special Provisions (§172.102)

(8) Packing Authorizations (§173.***)

(8A) Exceptions306see 49 CFR §173.306
(8B) Non-bulk302see 49 CFR §173.302
(8C) Bulk302, 314see 49 CFR §173.302, 314

(9) Quantity Limits

(9A) Passenger aircraft/rail75 kg
(9B) Cargo aircraft only150 kg

(10) Vessel stowage

(10A) Location

A

Stowage category “A” means the material may be stowed “on deck” or “under deck” on a cargo vessel or on a passenger vessel.

Source: 49 CFR §172.101(k)

(10B) Other
85Under deck stowage must be in mechanically ventilated space.

Source: 49 CFR §176.84

Segregation Chart for Load, Transport, Storage

In this table a statement is contained for each hazard class whether the loading, transport or storage with other hazard classes is allowed, is not permitted or is restricted. The table is based on U.S.-Code 49 CFR §177.848.

Hazard Class8
7
6.1
5.2
5.1
4.3
4.2
4.1
3
2.3B
2.3A
2.2
2.1
1.6
1.5
1.4
1.3
1.1/1.2
1.1/1.2
1.3
1.4
1.5
1.6
2.1
2.2
2.3A
2.3B
3
4.1
4.2
4.3
5.1
5.2
6.1
7
8
May not be loaded, transported, or stored together in the same transport vehicle or storage facility.
Load, transport, storage together is not restricted.
Load, transport, storage together is allowed under restrictions.

Substances with similar name

Helium Number Of Electrons

UN-NumberNameHazard Class
UN 1963Helium, refrigerated liquid (cryogenic liquid)2.2