Helium (from Greek: ἥλιος, romanized: helios, lit. 'sun') is a chemical element; it has symbol He and atomic number 2. It is a colorless, odorless, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table.

This is a list of elements by atomic number with symbol. 262.

Oct 4, 2024 · HE laundry detergent is marked with a small "HE" symbol on the product's label. Washer manufacturers recommend only using HE detergents in high-efficiency washers. Read on to learn what makes this detergent best suited for these washers and the best types to use for various machines.

12 hours ago · The HE symbol is a lowercase “h” and “e” inside a circle. This symbol can also be found on all HE laundry detergent packaging so you can be sure you’re using the right type of detergent for your washing machine.

Helium is a chemical element with symbol He and atomic number 2. Classified as a noble gas, Helium is a gas at room temperature. 1s 2. B. Cordero, V. Gómez, A.E. Platero-Prats, M. Revés, J. Echeverría, E. Cremades, F. Barragán, S. Alvarez, Dalton Trans. 2008, 21, 2832-2838. DOI:10.1039/b801115j PMID:18478144. 1 S 0.

Helium is a chemical element with the He symbol and Helium is a colourless, tasteless, and odourless gas with an atomic number. Helium is the Universe’s second most common element (after hydrogen), accounting for around 24 per cent of its weight.

Helium is the 2nd element in the periodic table and has a symbol of He and atomic number of 2. It has an atomic weight of 4.00260 and a mass number of 4. Helium has two protons and two neutrons in its nucleus, and two electrons in one shell.

Jul 10, 2022 · Look for the HE symbol, separated by an orange dot in their middle. Both letters are literally circled. That’s the indication that that detergent is high-efficiency washing machine compatible.

helium, Chemical element, chemical symbol He, atomic number 2. A noble gas, it is colourless, odourless, tasteless, completely unreactive, and nontoxic. First found by spectroscopy of the Sun’s atmosphere in 1868, it is the second most abundant and second-lightest element in the universe (after hydrogen).

Nov 21, 2020 · The chemical symbol for Helium is He. 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.