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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.
How many electrons protons and neutrons are in 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
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 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 atomic weight of technetium?
The atomic number of technetium (Tc) is 43.The atomic weight of Tc is 98 grams per mole.See the Web Links to the left of this answer for a periodic table with more information about this element!
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 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 number is a prime number 21 39 43 49?
43 is.43 is.43 is.43 is.
What is the greatest common factor of 53 and 43?
54/2 = 27/3= 9/3= 3/3=1 43 is a prime number therefore only divisible by 1 (or 43) The answer is, there is no highest common factor.
How are the elements with atomic numbers 43 and 61 are unique?
The element with atomic numbers 43 (Technetium) and 61 (Promethium) are unique because they are the only radioactive elements before the start of the bulk of the radioactive elements. The bulk of the radioactive elements begins at atomic number 84 (Polonium). These are significant as they aren't primordial and are only found due to radioactive decay.
