«Sun») is
a chemical element with symbol He and atomic number 2.
Lead is
a chemical element with symbol Pb (from the Latin plumbum) and atomic number 82.
Fluorine is
a chemical element with symbol F and atomic number 9.
Radium is
a chemical element with symbol Ra and atomic number 88.
With 189 member countries, staff from more 170 countries, and offices in over 130 locations, the World Bank Group is a unique global partnership: five Carbon (from Latin: carbo coal) is
a chemical element with symbol C and atomic number 6.
Carbon (from Latin: carbo coal) is
a chemical element with symbol C and atomic number 6.
Play a game Carbon (from Latin: carbo coal) is
a chemical element with symbol C and atomic number 6.
Samarium is
a chemical element with symbol Sm and atomic number 62.
Dr. Roger C. Wiens 941 Estates Drive, Los Alamos, NM 87544 RCWiens @ Carbon (from Latin: carbo coal) is
a chemical element with symbol C and atomic number 6.
During the period of a plant's life, the plant is taking Carbon (from Latin: carbo coal) is
a chemical element with symbol C and atomic number 6.
A heavy metal is defined as
a chemical element with a specific gravity that is at least five times that of water.
Arsenic, a toxic and highly dangerous
chemical element with symbol As has stealthily invaded our food supply.
Isotopes are variants of the same
chemical element with different atomic weights due to having different numbers of neutrons, such as the most common carbon isotope, carbon - 12, and a heavier stable isotope, carbon - 13.
chemical element with the symbol H, whose most common isotope consists of a single electron and a single proton.
Stepping out onto the Wetherby Road pitch in yellow and black every week, they shunned the name Yellows — unlike North Leigh and AFC Sudbury — in favour of The Sulphurites,
a chemical element with a bright yellow colour.
Not exact matches
If this were not enough, we must speak of the developing technologies associated
with cloning (the creation of identical genetic copies of a given person) and the cyborg (man - machines combining both organic and mechanical and / or electro -
chemical elements).
At the very bottom of the board we have the 92 simple
chemical elements (from hydrogen to uranium) formed by groups of atomic nuclei together
with their electrons.
Being now called upon by biology to consider the effects of synthesis, it is beginning to perceive that, parallel
with the phenomenon of corpuscular disintegration, the Universe historically displays a second process as generalized and fundamental as the first: I mean that of the gradual concentration of its physico -
chemical elements in nuclei of increasing complexity, each succeeding stage of material concentration and differentiation being accompanied by a more advanced form of spontaneity and spiritual energy.
You all know the end of the story: finally argon was discovered, a new
chemical element which had lurked undetected, mixed
with the nitrogen.
Because no
chemicals are used in the growing and processing of eco friendly cotton, wool and bamboo woods (used in cribs), there are no toxic
elements in the materials coming into contact
with your baby's skin.
The device is associated
with an
element to heat e juice from a reusable container and discharge
chemical aerosol.
The actinide series encompasses the 15
chemical elements that lie between actinium and lawrencium on the periodic table
with atomic numbers 89 - 103.
To achieve this, the group synthesized a series of mixed crystals
with the
chemical formula Ni1 - xCuxCr2O4 in which the
element nickel was successively replaced by copper.
For example, a Teflon coating could be modified
with nanoparticles to control adhesion, improve mechanical or thermal stability, incorporate antimicrobial or
chemical recognition
elements, or create gas or ion - permeable barriers.
The zinc that was present was enriched in the heavier and less - reactive isotopes, which are forms of these
elements with different atomic mass but the same
chemical properties.
This galaxy forms stars very slowly, so its
chemical composition is primitive compared
with that of the Milky Way, and
elements like carbon and oxygen are relatively scarce.
The outer layers of the dying star are expelled into circumstellar space, and
with them all the
chemical elements that the star has assembled by nuclear burning during its life.
«The aluminum occurs in pure metallic form, on its own, not in a
chemical compound
with other
elements.
While researching the disintegration of radioactive
elements with Ernest Rutherford, Soddy in 1910 observed that
elements of different atomic weights sometimes had the same
chemical properties.
The
chemical elements have been carefully measured from data coming from ground - based high - resolution spectra taken
with large telescopes located in the north of Chile.
When they erupt, the stars spew out their guts, seeding the cosmos
with chemical elements necessary for life to exist.
But that hasn't stopped researchers from combining them
with other
elements to make short - lived
chemical compounds.
However, «the CT scan didn't show the outline of the nervous systems unambiguously enough,» Strausfeld said, «while a scanning laser technique mapping the distribution of
chemical elements showed iron deposits outlining the nervous system almost as convincingly but
with minor differences.»
Atoms of most
elements, such as hydrogen, oxygen and carbon, form tight
chemical bonds by sharing electrons
with their neighbours in order to give each atom a stable configuration of electrons.
This is a close - up of the head region of the Alalcomenaeus fossil specimen
with the superimposed colors of a microscopy technique revealing the distribution of
chemical elements in the fossil.
A
chemical compound is a
chemical substance consisting of two or more different chemically bonded
chemical elements,
with a fixed ratio determining the composition.
A Cologne working group involving Prof. Carsten Münker and Dr. Elis Hoffmann and their student Sebastian Viehmann (working
with Prof. Michael Bau from the Jacobs University Bremen) have managed for the first time to determine the isotope composition of the rare trace
elements Hafnium and Neodymium in 2.7 - billion - year - old seawater by using high purity
chemical sediments from Temagami Banded Iron Formation (Canada) as an archive.
By looking at how concentrations of
chemical elements in the sediment change
with depth, the researchers can develop a continuous record of how much surface runoff poured into the lake.
As caterpillars grow, they take on a characteristic
chemical signature of the environment,
with hydrogen, oxygen and other
elements fixed in tissues in varying amounts.
In this scenario, some of the stars in the bulge might be younger,
with their
chemical composition enriched in heavier
elements expelled from the death of previous generations of stars, and they should show a different motion compared to the older stars.
Researchers from the KU Leuven Department of
Chemical Engineering have discovered a method to separate two rare earth
elements — europium and yttrium —
with UV light instead of
with traditional solvents.
Their brief existence, however, lends credence to the theory that an island of stable heavy
elements with unique
chemical properties exists within the undiscovered reaches of the periodic table.
It forms strong
chemical bonds
with many other
elements, and as a result, it tends to remain locked away in oxides that are forever entombed in the bowels of the planet — in the form of rocks.
Prior to joining the State Department, Gunderson was an American
Chemical Society - sponsored AAAS Congressional Fellow (2012 - 13)
with the Senate Committee on Energy and Natural Resources under Chairman Ron Wyden (D - Oregon),
with a legislative portfolio focused on basic energy - science research and development, low - carbon transportation fuels, alternative fuel vehicles, and critical minerals /
elements.
Thus, young stars contain larger amounts of heavy
elements produced by dozens or hundreds of supernovae, while the oldest stars have a very simple
chemical makeup
with few of the heavy
elements.
In more recent years, perovskites have expanded to a class of compounds
with a similar structure and
chemical recipe — a 1:1:3 ingredient ratio — that can be tweaked
with different
elements to make different «flavors.»
This compound belongs to a group
with a so - called BaNiSn3 - type structure (general
chemical formula: AMX3, where M represents a transition - metal
element).
To understand the long - term
chemical processes that occurred in the Roman structures, researchers used thin, polished slices of the concrete
with an electron microscope in Germany to map the distribution of
elements in the mineral microstructures.
It is produced in such large volumes because it can be easily combined
with other
elements and molecules, transforming it into new classes of
chemicals.
If this
element —
with the
chemical code P — is lacking in other parts of the cosmos, then it could be difficult for extra-terrestrial life to exist.