Use the periodic table to answer the question.
The elements in the periodic table are arranged in groups (columns numbered Roman numeral 1 through 18) and periods (rows numbered 1 through 7) such that the atomic number increases along a period from left to right. The elements are divided into the following categories:
• Alkali metals
• Alkaline earth metals
• Transition metals
• Post-transition metals
• Lanthanoids
• Actinoids
• Metalloids
• Nonmetals
• Noble gases
• Unknown
The elements are also classified on the basis of their physical states at room temperature as follows:
• Solid
• Liquid
• Gas
• Unknown
The element sulfur is enlarged with the following properties highlighted.
• Chemical symbol: S
• Name: Sulfur
• Atomic Number: 16
• Atomic mass: 32.06
• Common oxidation states: 6, 4, 2, negative 2
• Electronegativity: 2.58
• Ionization energies: 999.589 kilojoule mol raised negative one
• Electron configuration: [N e] 3 s squared 3 p to the fourth
Listed by atomic number, symbol, and name.
Period 1: 1, H, Hydrogen. 2, He, Helium.
Period 2: 3, Li, Lithium. 4, Be, Beryllium. 5, B, Boron. 6, C, Carbon. 7, N, Nitrogen. 8, O, Oxygen. 9, F, Fluorine. 10, Ne, Neon.
Period 3: 11, Na, Sodium. 12, Mg, Magnesium. 13, Al, Aluminum. 14, Si, Silicon. 15, P, Phosphorus. 16, S, Sulfur. 17, Cl, Chlorine. 18, Ar, Argon.
Period 4: 19, K, Potassium. 20, Ca, Calcium. 21, Sc, Scandium. 22, Ti, Titanium. 23, V, Vanadium. 24, Cr, Chromium. 25, Mn, Manganese. 26, Fe, Iron. 27, Co, Cobalt. 28, Ni, Nickel. 29, Cu, Copper. 30, Zn, Zinc. 31, Ga, Gallium. 32, Ge, Germanium. 33, As, Arsenic. 34, Se, Selenium. 35, Br, Bromine. 36, Kr, Krypton.
Period 5: 37, Rb, Rubidium. 38, Sr, Strontium. 39, Y, Yttrium. 40, Zr, Zirconium. 41, Nb, Niobium. 42, Mo, Molybdenum. 43, Tc, Technetium. 44, Ru, Ruthenium. 45, Rh, Rhodium. 46, Pd, Palladium. 47, Ag, Silver. 48, Cd, Cadmium. 49, In, Indium. 50, Sn, Tin. 51, Sb, Antimony. 52, Te, Tellurium. 53, I, Iodine. 54, Xe, Xenon.
Period 6: 55, Cs, Cesium. 56, Ba, Barium. 57, La, Lanthanum. 58, Ce, Cerium. 59, Pr, Praseodymium. 60, Nd, Neodymium. 61, Pm, Promethium. 62, Sm, Samarium. 63, Eu, Europium. 64, Gd, Gadolinium. 65, Tb, Terbium. 66, Dy, Dysprosium. 67, Ho, Holmium. 68, Er, Erbium. 69, Tm, Thulium. 70, Yb, Ytterbium. 71, Lu, Lutetium. 72, Hf, Hafnium. 73, Ta, Tantalum. 74, W, Tungsten. 75, Re, Rhenium. 76, Os, Osmium. 77, Ir, Iridium. 78, Pt, Platinum. 79, Au, Gold. 80, Hg, Mercury. 81, Tl, Thallium. 82, Pb, Lead. 83, Bi, Bismuth. 84, Po, Polonium. 85, At, Astatine. 86, Rn, Radon.
Period 7: 87, Fr, Francium. 88, Ra, Radium. 89, Ac, Actinium. 90, Th, Thorium. 91, Pa, Protactinium. 92, U, Uranium. 93, Np, Neptunium. 94, Pu, Plutonium. 95, Am, Americium. 96, Cm, Curium. 97, Bk, Berkelium. 98, Cf, Californium. 99, Es, Einsteinium. 100, Fm, Fermium. 101, Md, Mendelevium. 102, No, Nobelium. 103, Lr, Lawrencium. 104, Rf, Rutherfordium. 105, Db, Dubnium. 106, Sg,Seaborgium. 107, Bh, Bohrium. 108, Hs, Hassium. 109, Mt, Meitnerium. 110, Ds, Darmstadtium. 111, Rg, Roentgenium. 112, Cn, Copernicum. 113, Nh, Nihonium. 114, Fl, Flerovium. 115, Mc, Moscovium. 116, Lv, Livermorium. 117, Ts, Tennessine. 118, Og, Oganesson.
Which statement best describes the arrangement of electrons in an atom of fluorine (F)?
(1 point)
Responses
There are two electrons in the first energy level and five electrons in the second energy level.
There are two electrons in the first energy level and five electrons in the second energy level.
There are two electrons in the first energy level and seven electrons in the second energy level.
There are two electrons in the first energy level and seven electrons in the second energy level.
There are seven electrons in the first energy level and two electrons in the second energy level.
There are seven electrons in the first energy level and two electrons in the second energy level.
There are five electrons in the first energy level and two electrons in the second energy level.
There are five electrons in the first energy level and two electrons in the second energy level.
1 answer
To determine the arrangement of electrons in an atom of fluorine (F), we can refer to its atomic number, which is 9. This means a fluorine atom has 9 electrons.
Electrons are arranged in energy levels (shells) around the nucleus as follows:
- The first energy level can hold up to 2 electrons.
- The second energy level can hold up to 8 electrons.
For fluorine:
- The first energy level is filled with 2 electrons.
- The second energy level then has the remaining 7 electrons (9 total - 2 in the first level = 7 in the second level).
Therefore, the correct description of the arrangement of electrons in an atom of fluorine is:
There are two electrons in the first energy level and seven electrons in the second energy level.
