So it's hydrogen so we put an H here. There is still one proton in the nucleus, right one proton in the nucleus, so we put an atomic number of one. The mass number is the superscript, it's the combined number of protons and neutrons. So we look in the nucleus here. There'...
1、.Name:_Hour:_Date:_Chemistry: Atomic Number and Mass NumberComplete the following chart and answer the questions below.ElementNameAtomicNumberNumber ofProtonsNumber ofNeutronsMass Numbercarbon1288hydrogen1614hydrogen2nitrogen141292146cesium82111247108tungsten1104580245289152silver10776114How are the 2、 atomi...
The "atomic number" of an atom is equal to the number of protons it contains. The "mass number" or "atomic mass" of an atom is the sum of the number of both protons and neutrons in its nucleus What is an Atomic Number? Anatomic numberis the number ofprotonscontained within the nucleu...
Atomic number is the number of protons an atom has in its nucleus. Mass number is the number of protons PLUS the number of neutrons in its nucleus and is represented in atomic mass units. How do you find the atomic number? One can find the atomic number of an atom by looking at the...
Atomic Number and Mass Number Overview:Atoms are the building block of matter, and they combine in numerous forms to form different substances. You must be well aware that all the atoms consist of electrons, protons, and neutrons. But did you know how the presence of these subatomic particles...
Atomic Number • Hydrogen has one proton in the nucleus, and 1 electron around its nucleus. • Oxygen has eight protons in the nucleus, and eight electrons around its nucleus. Mass Number • Mass number is made up of the total number of ...
The three share the place in the periodic table assigned to atomic number 1 and hence are called isotopes (from the Greek isos, meaning “same,” and topos, signifying “place”) of hydrogen. Many important properties of an isotope depend on its mass. The total number of neutrons and ...
Answer and Explanation:1 The atomic number of mercury is 80. The atomic number can be found by locating the element on the periodic table. The atomic number is listed in the... Learn more about this topic: Atomic & Mass Number | Overview & Difference ...
Yes and no. If you are talking about a sample of a single isotope of an element, the atomic mass number and the atomic mass are either very close or else the same. In introductory chemistry, it's probably fine to consider them to mean the same thing. However, there are two cases in...
2 This question is about hydrogen, the element with atomic number Z =1.(a)(i) Hydrogen has two stable isotopes, H and H. Complete the table to show the number of subatomic particles present in the nuclei of these two isotopes of hydrogen.(1)Isotope Number of protons Number of neutrons...