First of all there is NO reason for the plural form of this question, because every element has only ONE unique atomic number with ONE unique symbol. In this case 86Ra
Radium is a radioactive chemical element which has the
symbol Ra and
atomic number 88 (group II, period 7 in the PS).
Its appearance is almost pure white, but it readily oxidizes on exposure to air, turning black. Radium is an alkaline earth metal (like Ca and Ba).
Ra is found in trace amounts in uranium ores. It is extremely radioactive. Its most stable isotope, 226Ra, has a half-life of 1602 years and decays into radon (86Rn) gas.
An atom with 11 protons, 12 neutrons, and 11 electrons. B. An atom with 11 protons, 10 neutrons, and 11 electrons.An atom with 11 protons, 12 neutrons, and 11 electrons.
The nucleus of an atom contains neutrons and protons and protons, in turn, contain quarks.
The sum of all Protons and Neutrons.
Protons, neutrons and electrons; protons and neutrons are composed from quarks and gluons.
The nucleus of an atom contains neutrons and protons. Almost all of the mass in an atom is made up from the protons and neutrons in the nucleus. Because the nucleus is only made up of protons and neutrons, it is positively charged. Physicists believe that there is a cluster of Protons and Neutrons within an Atom's nucleus. Friend Premier is quite right. So instead saying inside the nucleus it would be apt to say that nucleus is made up of...
Ra-228
The number of protons of an atom is given by its atomic number. Checking the periodic table, we see that the atom with 88 protons is radium. The isotope of radium with 138 neutrons would thus be 226Ra.
An atom of radium has a nucleus containing 226 particles, which includes 88 protons and 138 neutrons. The number of protons determines the element's identity, while the total number of protons and neutrons gives the mass number of the isotope. Therefore, the nucleus of a radium atom specifically has 226 nucleons.
It is an isotope of the element, radium (Ra), with 88 protons, 88 electrons and 147 neutrons (235 - 88 = 147).
There are 88 protons in a radium atom.
The three subatomic particles found in the nucleus of an atom are protons, neutrons, and electrons. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge. Together, they make up the structure of an atom.
The atom with 55 protons and 78 neutrons is silver-133. Therefore, the correct nuclide symbol would be (_{47}^{133}Ag).
The symbol for an atom with 17 protons and 18 neutrons is ( \text{Cl} ) (chlorine). The atomic number, which represents the number of protons, is 17, making it chlorine. The mass number, calculated by adding the number of protons and neutrons, is 35 (17 protons + 18 neutrons). Therefore, the complete symbol with the mass number is ( \text{Cl}^{35} ).
The atom with 20 protons and 22 neutrons would be Calcium (Ca) with atomic number 20 and mass number 42 (20 protons + 22 neutrons).
The mass number of an atom is equal to the sum of its protons and neutrons. It is represented by the letter "A" in the chemical symbol notation, where A = number of protons + number of neutrons in the nucleus of the atom.
The symbol of an atom of boron with 5 neutrons and 5 protons is ^10B. The superscript indicates the total number of protons and neutrons in the nucleus, and the atomic number (number of protons) is typically placed as a subscript.
262107BHJust imagine the 262 is directly above the 107, the upper number is the atomic mass number which is the sum of the number of protons and neutrons while the lower number is the atomic number which is just the number of protons.