which of the following statement is true about elements and compound
Answers
Answer:
A compound is a substance formed when two or more chemical elements are chemically bonded together. The type of bonds holding elements together in a compound can vary: two common types are covalent bonds and ionic bonds. The elements in any compound are always present in fixed ratios.
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Answer:
ELEMENT;
An element is a pure substance that is made from a single type of atom. Elements are the building blocks for all the rest of the matter in the world. An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms containing a single proton and a single electron. Currently, scientists know of 118 different elements. Some, like gold, silver, copper, and carbon, have been known for thousands of years. Examples of elements include iron, oxygen, hydrogen, gold, and helium. An important number in an element is the atomic number. The elements of the periodic table sorted by atomic number. Click on any element's name for further chemical properties, environmental data, or health effects. This list contains the 118 elements of chemistry. For chemistry students and teachers: The tabular chart on the right is arranged by an Atomic number.
COMPOUND
A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound. A compound is a material composed of two or more components. Water, carbon dioxide, and table salt are some examples of compounds. A compound is a unique substance that forms when two or more elements combine chemically. Compounds form as a result of chemical reactions. The elements in compounds are held together by chemical bonds. A chemical bond is a force of attraction between atoms or ions that share or transfer valence electrons.
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