Question

(3)what are the only elements that exist in nature as uncombined atoms? what term is used to describe such elements?hint

Answer 1

Hydrogen, oxygen, nitrogen, fluorine, chlorine, bromine, and iodine exist in nature as uncombined atoms. These elements are diatomic molecules because they consist of two atoms. Atoms are the smallest units of an element with unique properties.

Step-by-step explanation:

The only elements that exist in nature as uncombined atoms are hydrogen (H₂), oxygen (O₂), nitrogen (N₂), fluorine (F₂), chlorine (Cl₂), bromine (Br₂), and iodine (1₂). These elements are called diatomic molecules because they exist as two-atom combinations. Each element is designated by its chemical symbol, such as H for hydrogen. Atoms are the smallest units of an element that retain its unique properties.

Answer 2

The only elements that exist in nature as uncombined atoms are the noble gases. These elements are described as mono-atomic molecules. Nobles gases are group 8 elements, they have an octet configuration with a maximum number of electrons in the outer most energy level. They include, Helium, neon, argon, xenon among others.