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What changes in atomic number and mass number occur in beta emission?
Wiki User
∙ 12y ago
Electron (beta minus) decay: the Atomic Mass remain approx. constant, the atomic number will be greater with 1
Positron (beta plus) and electron capture decay: the atomic mass remain approx. constant, the atomic number decrease with 1
Double beta decay: the atomic mass remain approx. constant, the atomic number will be greater with 2
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoa. atomic #: -2, Mass #: -4
b. atomic #: +1, Mass #: no change
c. atomic #: -1, mass #: no change
d. atomic #: -1, mass #: no change
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Which atomic number is the threshold value below which fusion may occur?
66
When do most weather changes occur?
There is not a specific time when weather changes occur except for the changing of the seasons.
What does element 115 look like?
Firstly, I assume that this question mentions about the element in the periodic table which has the atomic number of 115. Let us discuss about the atomic structure at first. Basically, this type of atoms must have 115 protons, 115 electrons. According to the tendency of the increase in the number of neutrons in the nucleus, with the atomic number, this element should contain at least 150 neutrons. Additionally, as the atomic number of this element exceeds 84, it must be radioactive and unstable in the nature. Hence, it would not occur naturally even as compounds. So when needed it has to be synthesised using lighter atoms with nuclear fissions.
Why are most physical changes reversable?
Most physical changes are reversible because the changes only occur in in the appearance. =)
What is the number of protons electrons and neutrons in sulfur?
The number of electrons and protons in a neutral sulfur atom is the same as the atomic number of sulfur, which is 16. However, the number of neutrons can vary: Four isotopes of sulfur occur naturally, with 16, 17, 18, and 20 neutrons. Some 95 % of the atoms in a typical sample have 16 neutrons per atom.
What changes occur when a radioactive isotope disintegrates?
high-speed atomic particles occur
Which atomic number is the threshold value which fusion will occur?
56
When does atomic number occur?
It doesn't occur its just the way an way they measure atoms in an element
Which atomic number is the threshold value below which fusion will occur?
56
Which element is Atomic number- 112?
The element with an atomic number of 112 is called Copernicium. It is a synthetic, radioactive element that can only occur in a laboratory.
Which atomic number is the threshold value below which fusion may occur?
66
Why are changes considered unseen?
Chemical changes are considered unseen because they occur at the atomic level, changing the actual structure of the thing. This is in comparison to a physical change, which is visible.
Why are chemical changes considered?
Chemical changes are considered unseen because they occur at the atomic level, changing the actual structure of the thing. This is in comparison to a physical change, which is visible.
Why are chemical change consider unseen?
Chemical changes are considered unseen because they occur at the atomic level, changing the actual structure of the thing. This is in comparison to a physical change, which is visible.
Is the charge carried by each atom equal to it's atomic number?
No. The atomic number of an element is the number of protons in the nucleus of the atoms of that element, and that number never changes in any ordinary chemical reactions. Changes in the number of protons can only occur through radioactive decay or other nuclear reactions. An atom develops a charge by gaining or losing electrons, at which point they are called ions. An atom that gains electrons becomes a negatively charged ion, and an atom that loses electrons becomes a positively charged ion.
What happends to boling point as you increase the atomic number?
Within a periodic table column, the boiling point goes up as the atomic number is increased. However, this does not occur nearly so consistently as the atomic number goes up across a period of the periodic table.
Why is atomic number better than atomic mass for organizing the elements in the periodic table?
Atomic number is a unique number for each element. No two elements have the same atomic number. Atomic number is also the number of protons in the nuclei of the atoms of any given atom. Atomic mass, however, is the number of protons, neutrons and electrons. The number of neutrons can vary with different isotopes of the same element, this means that atomic mass can vary with different isotopes. So atomic number does not vary, but atomic mass does, so it is more logical to use atomic number to organize the elements. In addition, when the elements are arranged according to atomic number into seven rows and 18 columns, it becomes evident that there are certain trends that occur across the periods, and that elements in the same group have similar properties.
