Question

Question 5
A)
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 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.

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 two electrons in the first energy level and seven electrons in the second energy level.

Answer 1

To determine the arrangement of electrons in an atom of fluorine (F), we need to look at its atomic number, which is 9.

The electron configuration for fluorine can be derived based on the Aufbau principle, which indicates that electrons fill the lowest available energy levels first.

- The first energy level (n=1) can hold a maximum of 2 electrons. Fluorine has 2 electrons in this level.
- The second energy level (n=2) can hold a maximum of 8 electrons, and fluorine has 7 electrons in this level.

Thus, the correct statement describing 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.**