Here is the answer for the question – Fluorine, F, has an atomic number of 9 and an approximate atomic mass of 19. How many protons does a fluorine atom have?. You’ll find the correct answer below
Fluorine, F, has an atomic number of 9 and an approximate atomic mass of 19. How many protons does a fluorine atom have?
a) 9
b) 19
c) 10
d) 28
Jul 03, 2019 Isotopes: Fluorine has 17 known isotopes ranging from F-15 to F-31. F-19 is the only stable and most common isotope of fluorine. F-19 is the only stable and most common isotope of fluorine. Density (g/cc): 1.108 (@ -189°C). Repeating this analysis with a large number of ionic compounds, however, has made it possible to obtain a set of more accurate ionic radii. The Relative Size of Atoms and Their Ions The table and figure below compare the covalent radius of neutral F, Cl, Br, and I atoms with the radii of their F -, Cl -, Br -, and I - ions. Atomic Number of Elements in Periodic Table. We remember from our school chemistry course that every element has its own specific atomic number.It is the same as the number of protons that the atom of each element has, so sometimes atomic number is called proton number.It is always the whole number and it ranges from 1 to 118, according to the number of the element in the Periodic Table. Having a chemical formula of F−, fluoride ion is the simplest inorganic, monatomic anion of fluorine with basic properties. It is considered a trace element. Fluoride ions are found in various minerals but are only present in trace amounts in water. Fourth transition series or the 6d series: Elements which have an atomic number from 104 to 112 and 89 form the elements in this group. F Block Elements in Modern Periodic Table. The ‘f’ – block elements are also known by the name of inner transition elements. In these elements, the last electron usually enters the penultimate i.e.
The Correct Answer is
Fluorine Number Protons
A
Reason Explained

A is correct for Fluorine, F, has an atomic number of 9 and an approximate atomic mass of 19. How many protons does a fluorine atom have?
Atomic Number Of Fluoride

Related Posts:
Cached
Electrons and Sublevels Electron Configurations and the Periodic TableWriting Electron ConfigurationsBox and Arrow Configurations using Pauli Exclusion Principle and Hund's RuleQuantum Numbers back to Atomic Structure Links
Principal energy levels are broken down into sublevels. Theoretically there are an infinite number principal energy levels and sublevels. If you are just starting to study chemistry, you should only be concerned with the first 4 sublevels. Each sublevel is assigned a letter. The four you need to know are s (sharp), p (principle), d (diffuse), and f (fine or fundamental). So, s,p,d & f. The Principal Energy Level (the #) only holds that # of sublevels.
Yes, the 5th energy level holds 5 sublevels and that last one would be 5g. The number of electrons in each sublevel
Electrons fill in energy order (Aufbau Principle) not energy level order. NOTE-Some Principal Energy Levels start to fill before previous ones finish. ex 4s fills before 3d, because 4s has less energy than 3d. It must fill first. Electrons fill the sublevels in energy order 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f 6d 7p If we add the number of electrons that each sublevel holds it looks like this: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p6 The diagram below really shows the overlap of the Principal Energy Levels on to Sublevels and the Periodic Table Electrons and Sublevels Electron Configurations and the Periodic TableWriting Electron ConfigurationsBox and Arrow Configurations using Pauli Exclusion Principle and Hund's RuleQuantum Numbers back to Atomic Structure Links Chemical Demonstration Videos |
