Understand that isotopes of an element have different mass numbers but the same number of protons. Using the Periodic Table, find the atomic number of the element. The atomic number equals the number of protons. In a balanced atom, the number of electrons equals the number of protons. In an...
The element of nitrogen has an atomic mass of 15 and atomic number 7. How many neutrons does it have? also write the electronic configuration. How many electrons are in the Outermost shell of element 35CI17? If it had one more electro...
How many protons are in an isotope of sodium with a mass number of 25? How is an atom's atomic mass number determined? How do you calculate atomic number? A certain isotope X^+ contains 54 electrons and 78 neutrons. What is the mass number of this isotope?
How many neutrons does hassium have? How many neutrons are in the isotope carbon-14? How many protons, neutrons and electrons does calcium have? How many neutrons does fermium have? What is the number of neutrons in Se? How many protons, electrons, and neutrons are in Hydrogen-3 atom?
Determine how many electrons the atom contains. Use the atomic number to find the number of protons, neutrons and electrons the atom contains. This information is available from the Periodic Table of the Elements. For example, a carbon atom has an atomic number of 6. This means the atom has...
How many neutrons, protons, and electrons are in carbon? What is the mass in grams of 44.5 mol Xe? Why is Avogadro's number called the mole? Why does one multiply the mass of one element in a given compound by the moles of that compound to find the amount of the elements present in...
Protons and electrons have opposite charges and therefore attract one another (electrons are negative and protons are positive, and opposite charges attract). In most cases, the number of electrons and protons are the same for an atom (making the atom neutral in charge). The neutrons are neut...
or six electrons in its outermost orbital. You can also figure out how many electrons are in its first, second and third orbitals: The first orbital can hold a maximum of two electrons, while the second has four suborbitals and so can hold a total of eight electrons. The third shell of...
Each electron orbit of the same size or energy (shell) could only hold so many electrons. For example, the first shell could hold two electrons, the second could hold eight electrons, the third could hold 18 electrons, the fourth 32 and so on until reaching the seventh. ...
Matter and the atoms that make it up consists of electrons, protons, and neutrons. The center or nucleus of each atom consists of at least one positively charged proton. Usually the nucleus includes neutrons, which are uncharged. Negative electrons are found in orbitals well outside the nucleus...