When two elements or more combine together it is known as a compound?

When two elements or more combine together it is known as a compound?

compound
When two or more elements combine to form a new substance, it is called a compound. There are many different types of compounds, because atoms of elements combine in many different ways to form different compounds. Examples include water (H2O) and table salt (NaCl). The smallest part of a compound is a molecule.

When two or more elements combine chemically then a compound is formed True or false?

A compound is a substance that contains two or more elements chemically combined in a fixed proportion. The elements carbon and hydrogen combine to form many different compounds.

What is it called when any two elements combine?

When two distinct elements are chemically combined—i.e., chemical bonds form between their atoms—the result is called a chemical compound. Most elements on Earth bond with other elements to form chemical compounds, such as sodium (Na) and Chloride (Cl), which combine to form table salt (NaCl).

What is it called when two or more atoms combine together?

A molecule is formed when two or more atoms join together chemically. If atoms combine that are of two or more different elements, we call that a compound. All compounds are molecules, but not all molecules are compounds. When two hydrogen atoms combine with one oxygen atom, it becomes the compound water.

When two elements combine to form a compound the greater the difference in metallic character?

Explanation: A large difference in the metallic character of elements would mean that the compound formed by the combination of these two elements will be ionic and a solid at room temperature.

What is formed when two or more substances are combine?

Compounds. Explanation: Two or more elements combined into one substance through a chemical reaction, such as water, form a chemical compound.

Between which two elements is the difference in metallic character the greatest?

Metallic character is a periodic table trend. The elements with the most metallic character are on the left side of the periodic table (except hydrogen). Francium is the element with the highest metallic character.

Why is the electron affinity unfavorable for for the Group 2 elements?

Notice that the Group 2 elements have much lower electron affinities than the Group 1 elements, with beryllium and magnesium even having positive electron affinities. Because of electron-electron repulsions, this is energetically unfavorable, making the electron affinity more positive.

What happens when two or more elements are combined?

A combination of two or more elements chemically combined is a compound . Compounds can be molecular or ionic. In a molecular compound, the electrons of the elements making it up are shared, forming covalent bonds. The smallest particle of a molecular compound that has the properties of that compound is a molecule.

How are elements and compounds alike and different?

Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds. They contain only one type of molecule. Elements that compose the compound are chemically combined. Elements contain only one type of atom. Each atom has the same atomic number i.e., the same number of protons in their nucleus.

Which is an example of a compound made of exactly two elements?

Here is a list of examples of compounds made up of exactly two elements. H 2 O – water NaCl – sodium chloride or table salt KCl – potassium chloride

How are the different types of compounds held together?

Chemical compounds can be: 1 molecular compounds held together by covalent bonds 2 salts held together by ionic bonds 3 intermetallic compounds held together by metallic bonds 4 complexes held together by coordinate covalent bonds.