Question

СРОЧНО ДАМ МНОГО БАЛОВ .У якій частині кожного періоду розмiщенi елементи, що на лежать до: а)лужних елементів; б) галогенів; в) інертних еле ментів? Наведіть приклади. ​

Answer 1

Ответ:

а)Лужні метали розташовані на початку кожного періоду.

б) галогени розташовані в кінці кожного періоду перед інертними газами.

в) інертні гази розташовані в кінці кожного періоду.

Объяснение:

Лужні метали-натрій, калій, рубідій, цезій

Галогени: фтор, хлор, бром, йод

Інертні гази-неон, аргон, гелій

Answer 2

Periodic Table and Element Placement

In each period of the periodic table, the elements are arranged in a specific order based on their properties. Let's explore the placement of elements belonging to alkali metals, halogens, and noble gases in each period.

Alkali Metals

The alkali metals are located in the first column of the periodic table, which is the leftmost column. They include elements such as lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). These elements are highly reactive and are known for their tendency to form alkaline solutions when they react with water or acids[[1]].

Halogens

The halogens are located in the second-to-last column of each period, which is the seventeenth column. This group includes elements such as fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). Halogens are highly reactive nonmetals and are known for their tendency to form salts when they react with metals[[2]].

Noble Gases

The noble gases are located in the last column of each period, which is the eighteenth column. This group includes elements such as helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). Noble gases are characterized by their very low reactivity and are often referred to as "inert gases" due to their stable filled valence electron shells[[3]].

By understanding the arrangement of elements in the periodic table, we can easily identify the location of alkali metals, halogens, and noble gases in each period based on their properties and reactivity.