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Strontium(Sr) and Radium(Ra)

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Q: Which two solid metal elements might scientists use to create an element with an atomic number of 129?
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What it a process in which lighter elements stick together to create heavier elements?

The process in which lighter elements stick together to create heavier elements is known as fusion. This is the process that will be used in the synthesis of a heavier atomic nuclei.


Where are new elements placed on the periodic table?

You'd need to either discover them or create them. All elements with atomic numbers 1 through 116 have been discovered or synthetically created, as well as 118. 117 hasn't officially been observed, however.


What subatomic particles can differ between neutral atoms of the same element?

The subatomic particle that makes atoms of different elements different from each other is the proton. This is given as the atomic number of the element on the periodic table.


Why do you think changing the number of neutrons does not create a new element?

Because an element is defined by it's atomic number. Which is defined by the number of protons found in atom. Adding a neutron creates an isotope of an element.


What are synthetic radioactive elements?

There are several possibilities for elements that are always radioactive and are artificially produced: Technetium Promethium Any element with atomic number 92 (plutonium) or heavier. There are approx 25 of these in existence up to element 118 (element 117 has not been made yet). Additionally, it could be argued that plutonium is found naturally. But only the faintest traces can be found, and could be said to be produced artificially via neutron capture by uranium. It might be (and probably is) possible to create technitium or promethium in the same manner if precursor nuclei for those elements are found with naturally occurring uranium. Neutron capture is possible across a fairly wide range of elements.

Related questions

Which kind of scientists create atomic bombs?

Physicists and nuclear scientists create atomic bombs.


What is atomic number . How is it used to create a periodic table?

The atomic number is the number of protons in the nucleus of an element. It defines the element. No two different elements can have the same number of protons. It is used to lay out the periodic table because the table shows the elements in increasing numbers of protons.


What is an atomic number. how is it used to create a periodic table?

The atomic number is the number of protons in the nucleus of an element. It defines the element. No two different elements can have the same number of protons. It is used to lay out the periodic table because the table shows the elements in increasing numbers of protons.


Are elements organic?

Atomic number


Where do scientists believe chmical evolution occurred?

The higher elements are forged in the center of stars. Most stars can create up to about element 6-8 on the periodic table, but any elements higher than that require a super nova.


How is light emitted from elements useful to scientists?

Elements, such a yttrium, have helped to create the lights that are used in televisions


What is the difference between synthetic elements and other elements?

Synthetic elements are those which have been produced by scientists in a laboratory, but not yet discovered occurring naturally. They are true elements because they occupy missing spaces on the periodic chart....they adjust the number of electrons, i.e., in one element to create another.


What elements create gold?

Gold. Gold is an element, so it cannot be created from other elements.


How Mendeleev used the data available to him to create his periodic table?

Mendeleev placed his elements in order of increasing atomic mass. He placed elements with similar chemical properties in the same groups or families. He realized that there were some gaps in the table where an undiscovered element should go and made predictions about those elements before they were found.


What it a process in which lighter elements stick together to create heavier elements?

The process in which lighter elements stick together to create heavier elements is known as fusion. This is the process that will be used in the synthesis of a heavier atomic nuclei.


Where are new elements placed on the periodic table?

You'd need to either discover them or create them. All elements with atomic numbers 1 through 116 have been discovered or synthetically created, as well as 118. 117 hasn't officially been observed, however.


Who invented piriodic table?

Dmitri Mendeleev created the first periodic table according to atomic mass in 1869. Others before Mendeleev had organized the elements according to their properties and were able to discern periodicity, although Mendeleev is generally accepted as the creator of the table.With the information he gathered about the elements, he was able to see that there were missing elements that hadn't been discovered. He could figure out the atomic masses of the missing elements by averaging the atomic masses of the elements above and below the missing one. One such element, which he called "eka-silicon" (eventually Ge) was missing, but with understanding of the patterns the periodic table made, he predicted the elements appearance, melting point, atomic mass, density, formula of oxide, and formula of chloride.Throughout the years, other scientists were able to find or create these missing elements to form the table we know today. Today's periodic table is ordered by atomic number instead of atomic mass (as Mendeleev had started). Henry Moseley was the first to order the elements by atomic number so elements would fit together in groups/families and periods better in 1913.