Of the common sub-atomic particles, both the proton and the neutron have mass numbers of 1.
It is a proton or Hydrogen atom.
neutron
proton
Proton
This question probably refers to a positron, although I am not sure that the description of it as having a negative atomic number is widely recognized.
The atomic number refers to the number of protons in an element. The mass number can be used to indicate the number of neutrons because both protons and neutrons have a mass of about 1. An oxygen atom has 8 protons and 8 neutrons.
No, it is based upon the Atomic Number - the number of protons contained within an atomic nucleus is what 'distinguishes' one type of Atom from another type. Variations in atomic mass are secondary in consideration.
Usually with the '4 types of radiation' it is referred to:- alpha radiation (emission of an alpha particle = a helium nucleus = 2 neutrons + 2 protons):Hence for the emitting nucleus the mass number decreases by 4 and the atomic number by 2.- beta-minus radiation (emission of a beta- particle = an electron)Hence for the emitting nucleus the mass number remains the same and the atomic number increases by 1 (a neutron decays into a proton and beta- radiation)- beta-plus radiation (emission of a beta+ particle = a positron)Hence for the emitting nucleus the mass number remains the same and the atomic number decreases by 1 (under the addition of energy a proton decays into a neutron and a positron)- gamma radiation (emission of high energetic photons)The emitting nucleus doesn't change its mass number and atomic number,but it jumps from a higher energy level to a lower energy level.
Type your answer here..The Atomic Mass Unit tells us that ,How heavy a substance as compare to the other.
This question probably refers to a positron, although I am not sure that the description of it as having a negative atomic number is widely recognized.
Emission of an alpha particle.
beta
An alpha particle is essentially a helium atomic nucleus with 2 protons and 2 neutrons. An alpha particle decay will result in the loss of 2 protons and 2 neutrons. Because mass number is the sum of protons and neutrons, an alpha decay will reduce the mass number by 4, (and the atomic number by 2).
The atomic number refers to the number of protons in an element. The mass number can be used to indicate the number of neutrons because both protons and neutrons have a mass of about 1. An oxygen atom has 8 protons and 8 neutrons.
(Relative is the relative to hydrogen bit) Relative Atomic Mass:12 Proton number:6 The actual mass depends on how much carbon you have.
No, it is based upon the Atomic Number - the number of protons contained within an atomic nucleus is what 'distinguishes' one type of Atom from another type. Variations in atomic mass are secondary in consideration.
Usually with the '4 types of radiation' it is referred to:- alpha radiation (emission of an alpha particle = a helium nucleus = 2 neutrons + 2 protons):Hence for the emitting nucleus the mass number decreases by 4 and the atomic number by 2.- beta-minus radiation (emission of a beta- particle = an electron)Hence for the emitting nucleus the mass number remains the same and the atomic number increases by 1 (a neutron decays into a proton and beta- radiation)- beta-plus radiation (emission of a beta+ particle = a positron)Hence for the emitting nucleus the mass number remains the same and the atomic number decreases by 1 (under the addition of energy a proton decays into a neutron and a positron)- gamma radiation (emission of high energetic photons)The emitting nucleus doesn't change its mass number and atomic number,but it jumps from a higher energy level to a lower energy level.
Type your answer here..The Atomic Mass Unit tells us that ,How heavy a substance as compare to the other.
Beta- decay result in an increase of atomic number by one, with no resulting change in the atomic mass number.There is a change in mass, since an electron and an electron anti-neutrino is emitted, and also because the neutron changes into a proton, but the atomic mass number, per se, does not change.
an alpha particle
Proton rays consist of protons, a type of positively charged atomic particle, rather than photons, which have neither mass nor charge