What is the mass number please?

Q: How many hydrogen atoms are there on the carbon atom labeled "A"?

A:

Q: An atom of atomic number 53 and mass Number 127contains how many neutrons?

A: Atomic number (Z) = 53 Mass number (A) = 127 Number of neutrons (n) = ?

Q: An isotope that contains 51 protons, 51 electrons, and 74 neutrons. What is its two notations?

A: Isotopes are those elements which have same atomic number but different mass number.   Atomic number…

Q: sequence of the unstable radioactive nucleus lead-212 can decay into a stable nucleus

A: If lead-212(Pb-212) undergoes two consecutive beta decay and then one alpha decay , it will lead…

Q: An atom of 131 I contains ________ protons.

A: An atom = 131I  Number of protons = ?

Q: This is a lab question, referring to zinc and iodine reacting to form zinc iodide.  If at the end…

A: Law of conservation of mass: The mass of products is equal to mass of reactants throughtout the…

Q: How many protons and neutrons are in the nucleus of Kr-80?

A:

Q: An atom of a carbon-14 isotope would contain how many protons, neutrons, and electrons?

A: The correct answer is given below

Q: Element: Lead Name of isotope Number of Number of Abundance Abunda Protons Neutrons Mass (amu) (%)…

A: We are given isotopes of lead(Pb), and we have to find the number of protons, neutrons and %…

Q: An 18 O atom contains the same number of protons. neutrons, and electrons.

A: Given atom, 8O18

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.