What is the symbol for the isotope with 80 protons and a mass number of 202? How many neutrons does it have?Mass Number:The mass number of an atom represents the number of nucleons in the nucleus of an atom. Nucleons is a general term for p...
Give the element symbol, atomic number, number of protons, number of neutrons, mass number, and total number of electrons for cesium-135. How many electrons, protons, and neutrons are found in isolated atoms having the atomic symbol 17/8O? How many el...
Atoms of both isotopes of copper have 29 protons, but a copper-63 atom has 34 neutrons while a copper-65 atom has 36 neutrons. Both isotopes act and look the same, and both are stable. Radioactive Material The part that scientists didn't understand until about 100 years ago is that ...
It has been suggested that extremely neutron rich nuclei constitute a second branch of the table of isotopes whose ground states have the maximum possible isospin Tmax = A/2 and that neutral members of the T max branch (i.e., polyneutrons) serve as mediating particles for the new class ...
Neutrons also weight one atomic unit, but have no charge. They are responsible for "gluing" the nucleus together, ensuring that the positive charges on the protons do not repulse strong enough to disintegrate the atom Electons have virtually no weight, and a negative charge. These are relati...
A monatomic ion has a charge of +4. The nucleus of the ion has a mass number of 235. The number of neutrons in the nucleus is 1.55 times that of the number of protons. a. How many electrons are in the ion? b. What is the na...
atomic mass c. atomic number d. neutronsHow do you find the number of valence electrons of an element?1. How many elements are on the periodic table? 2. Which of those are: a. metal? b. gas? c. unknown?What are the representative elements? In what region(s) of the...
Each chemical element has its own distribution of isotopes, which are atoms with the same number of protons, but differing numbers of neutrons. Some of these isotopes are unstable, which are indicated with half-life values in the literature. The half-life c...
That is, it should have 6 protons and 6 neutrons in its nucleus. However, when the number of neutrons is 8 producing a carbon-14 isotope, the nucleus will be highly unstable and has to undergo radioactive decay. Carbon-14 can be referred...
How many moles are in a 45.00 g sample of the element S? How many moles of atoms are in each sample? How many moles are in a 45.00 g sample of the element F? How many moles of atoms are in each sample? Calculate the mass in grams of one mole of ...