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They are all man-made or synthetic elements, i.e., they are not found naturally in nature and are atomically unstable.
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What is the first radioactive element number?
Of elements that have no stable isotopes, technetium has the lowest atomic number, which is 43.
What element continue to decay until they finally become stable?
All elements above the atomic number of 83 are radioactive, but two elements that are under it are also radioactive. They are technetium (atomic number 43) and promethium (atomic number 61). Radioactive elements are elements that decay until stable. =)
What is the latitude and longitude of Cottonwood Arizona?
Latitude: 34°43′56″N Longitude: 112°1′7″W
How many elements in the periodic table are not man made?
92 Today natural elements are considered the elements up to the atomic number 98; but the elements with atomic numbers 43, 61 and 93-98 exist only in extremely traces, as a curiosity in uranium deposits. Of course they can be obtained also by man made nuclear reactions. Consequently man made elements must be considered only the elements with the atomic number over 98: some examples are meitnerium, bohrium, flerovium.
How many particles are in the nucleus of an atom of technetium?
Technetium has 43 protons and 43 electrons. For each isotope the number of neutrons is different. Number of neutrons = Mass number of an Tc isotope - 43
What are the common factors of 42 and 43?
43 is a prime number so the common factors of 43 and 42 are 1
What is 1 12 plus 43?
112 + 43 = 155
What is the greatest common factor of 43 and 16?
The greatest common factor of 43 , 16 = 1
What is the greatest common factor of 43 and 86?
43 X 2 equals 86. 43 is a prime number. 43 is the GCF of 43 and 86.
What number goes into both 43 and 123?
Only the number 1 goes into both 43 & 123... because 43 is a prime number.
What is the first radioactive element number?
Of elements that have no stable isotopes, technetium has the lowest atomic number, which is 43.
What do elements 43 61 93-109 have in common?
All of these elements are synthetic. They are not found on Earth in nature, but are all created in nuclear labs.
What two digit number has a GCF of 43?
The gcf of 43 and 129 is 43, so the two digit number must be 43; howeverthe gcf of 86 and 129 is also 43, so the two digit number must be 86; howeverthe gcf of 22 and 86 is only 2 and the gcf of 22 and 43 is only 1, no neither 43 nor 86 has a gcf of 43!Hint:You cannot have a COMMON factor with only onenumber - common implies at least two numbers.The greatest COMMON factor is the largest number that divides all the numbers and depends upon all the numbers - it makes no sense to ask for the greatest COMMON factor of a single number.
What are the factors and prime factors of 43?
43 is a prime number therefore the only two factors are 1 and itself (43) 43 is a prime number. The only two factors of a prime number are 1 and itself. The two factors of 43 are 1 and 43. There are only two factors of a prime number. The only factor pair of 43 is 1 x 43. There is only one factor pair of a prime number. The proper factors of 43 are only 1 or, if the definition you are using excludes 1, there are none. The only prime factor of 43 is 43. There is only one prime factor of a prime number - itself. The only distinct prime factor (listing each prime factor only once) of 43 is also 43. The prime factorization of 43 is 43. In some cases, to emphasize that it is prime, you might write the prime factorization as 1 x 43. NOTE: There cannot be common factors, a greatest common factor, or a least common multiple because "common" refers to factors or multiples that two or more numbers have in common.
Natural ocuring elements are?
All elements lighter than Uranium (atomic number: 92) occur naturally except for technetium (43).
What are the common factors of 43?
The factors of 43 are 1 and 43. For them to be common, they need to be compared to another set of factors.
What element continue to decay until they finally become stable?
All elements above the atomic number of 83 are radioactive, but two elements that are under it are also radioactive. They are technetium (atomic number 43) and promethium (atomic number 61). Radioactive elements are elements that decay until stable. =)
