0
What else can I help you with?
How many chemical elements occur naturaly in the universe?
There are 94 naturally occurring chemical elements in the universe. These elements range from hydrogen, the most abundant, to uranium, the heaviest naturally occurring element.
List three conditions that must exist for the continuous fusion of hydrogen to occur?
High temperature, high pressure, and the presence of hydrogen isotopes like deuterium and tritium are necessary conditions for the continuous fusion of hydrogen to occur in a controlled manner.
How many natural elements in periodic table?
Out of the first 92 elements, 1 being hydrogen (H) and 92 being uranium (U), there are 90 that are naturally occurring. Technetium (Tc) and promethium (Pm) are man-made elements and do not have any isotopes occurring naturally.
When is hydrogen bonding most likely to occur?
It is a common bond between hydrogen and nitrogen, fluorine, oxygen because these elements are highly electronegative.
How many natural occurring elements in the world?
Exactly 90 that we know of. All the elements 1-92, or Hydrogen (H) through Uranium (U) are natural, with the exception of element 61, Promethium (Pm), and element number 43, Technetium (Tc). Everything past Uranium can only be created through synthetic means.
Are there any elements lighter than Uranium that do not occur naturally that are detectable by purely chemical means?
Today all elements from hydrogen to californium are considered as natural; lighter elements than uranium as francium, promethium and technetium are now impossible to be detected only by chemical methods.
How many chemical elements occur naturaly in the universe?
There are 94 naturally occurring chemical elements in the universe. These elements range from hydrogen, the most abundant, to uranium, the heaviest naturally occurring element.
Is actinoids all transuranium elements?
no. uranium and thorium occur in nature
What element formed when a hydrogen bomb explodes?
When a hydrogen bomb explodes, different elements may be formed through nuclear reactions, such as helium, lithium, tritium, and various isotopes of heavy elements like uranium and plutonium. These elements are created through the fusion and fission processes that occur during the explosion.
Natural ocuring elements are?
All elements lighter than Uranium (atomic number: 92) occur naturally except for technetium (43).
Which two actinides occur naturally?
Uranium and thorium are the two actinides that occur naturally in the Earth's crust. They are found in low concentrations and have important roles in various nuclear reactions and processes.
Are there any elements lighter than Uranium that do not occur naturally?
In the past promethium and technetium were considered as artificial elements; now extreme traces of these elements were discovered in the nature.
How many chemicals occur in nature periodic table?
About 80% of the first 117 elements occur in the nature in a stable manner.
Which are the naturally occurring elements?
Everything in the Periodic Table up to Uranium (92). Wrong, not everything, the elements Technetium (43) and Promethium (61) do not occur naturally.
List three conditions that must exist for the continuous fusion of hydrogen to occur?
High temperature, high pressure, and the presence of hydrogen isotopes like deuterium and tritium are necessary conditions for the continuous fusion of hydrogen to occur in a controlled manner.
How many natural elements in periodic table?
Out of the first 92 elements, 1 being hydrogen (H) and 92 being uranium (U), there are 90 that are naturally occurring. Technetium (Tc) and promethium (Pm) are man-made elements and do not have any isotopes occurring naturally.
Why are elements with atomic numbers higher than 92 referred to as transuranium elements?
Elements with atomic numbers higher than 92 are referred to as transuranium elements because they are synthesized artificially by nuclear reactions and do not occur naturally in significant quantities on Earth. They generally have unstable nuclei and are radioactive, making them distinct from the naturally occurring elements in the periodic table.
