%ما هو (من)٪ 1 - تعريف

NUCLIDES WITH ATOMIC NUMBER OF 26, BUT WITH DIFFERING MASS NUMBERS

Iron-60; Iron-57; Iron-58; Iron-54; Iron isotopes; Iron-52; Iron-53; Iron-59; Iron-45; Iron-46; Iron-47; Iron-48; Iron-49; Iron-50; Iron-51; Iron-61; Iron-62; Iron-63; Iron-64; Iron-65; Iron-66; Iron-67; Iron-68; Iron-69; Iron-70; Iron-71; Iron-72; Iron-52m; Iron-53m; Iron-54m; Iron-61m; Iron-65m; Iron-67m; Iron 60; Iron isotope

sad iron

TOOL OR APPLIANCE FOR SMOOTHING CLOTH USING HEAT AND PRESSURE

Sad iron; Steam iron; Electric iron; Tailor's goose; Iron (appliance); Clothes pressing iron; Flatiron (appliance); Goffering iron; Laundry iron; Clothing iron; Sadiron; Steam generator iron

¦ noun historical a flat iron.

Origin

from sad, in the obs. sense 'weighty'.

steam iron

TOOL OR APPLIANCE FOR SMOOTHING CLOTH USING HEAT AND PRESSURE

Sad iron; Steam iron; Electric iron; Tailor's goose; Iron (appliance); Clothes pressing iron; Flatiron (appliance); Goffering iron; Laundry iron; Clothing iron; Sadiron; Steam generator iron

¦ noun an electric iron that emits steam from holes in its flat surface.

steam iron

TOOL OR APPLIANCE FOR SMOOTHING CLOTH USING HEAT AND PRESSURE

Sad iron; Steam iron; Electric iron; Tailor's goose; Iron (appliance); Clothes pressing iron; Flatiron (appliance); Goffering iron; Laundry iron; Clothing iron; Sadiron; Steam generator iron

(steam irons)

A steam iron is an electric iron that produces steam from water that you put into it. The steam makes it easier to get the creases out of your clothes.

N-COUNT

ويكيبيديا

Isotopes of iron

Naturally occurring iron (₂₆Fe) consists of four stable isotopes: 5.845% of ⁵⁴Fe (possibly radioactive with a half-life over 4.4×10²⁰ years), 91.754% of ⁵⁶Fe, 2.119% of ⁵⁷Fe and 0.286% of ⁵⁸Fe. There are 24 known radioactive isotopes, the most stable of which are ⁶⁰Fe (half-life 2.6 million years) and ⁵⁵Fe (half-life 2.7 years).

Much of the past work on measuring the isotopic composition of Fe has centered on determining ⁶⁰Fe variations due to processes accompanying nucleosynthesis (i.e., meteorite studies) and ore formation. In the last decade however, advances in mass spectrometry technology have allowed the detection and quantification of minute, naturally occurring variations in the ratios of the stable isotopes of iron. Much of this work has been driven by the Earth and planetary science communities, although applications to biological and industrial systems are beginning to emerge.

https://en.wikipedia.org/wiki/Isotopes of iron