What are the 3 classification of compounds?

Chemical Compounds

  • Other types of formulas are used to display more detailed characteristics of molecules.
  • Empirical vs. molecular compounds.
  • Ionic Compounds.
  • References.

What is the classification of compound?

Compounds can be classified as covalent or ionic. Covalent compounds are compounds which are formed as a result of electron sharing between two chemical elements such as methane (CH4). Ionic compounds are formed as a result of a metal giving up one or more lectrons to a non metal or polyatomic ion.

Who owns PubChem?

PubChem (Kim, 2016; Kim et al., 2016a; Wang et al., 2017) is a public chemical information resource, developed and maintained by the National Center for Biotechnology Information (NCBI) at the National Library of Medicine (NLM), an institute within the U.S. National institutes of Health (NIH).

What are the uses of PubChem?

PubChem supports drug discovery in many aspects such as lead identification and optimization, compound-target profiling, polypharmacology studies and unknown chemical identity elucidation. PubChem has also become a valuable resource for developing secondary databases, informatics tools and web services.

What are the 4 types of compounds?

There are four types of compounds, depending on how the constituent atoms are held together:

  • molecules held together by covalent bonds.
  • ionic compounds held together by ionic bonds.
  • intermetallic compounds held together by metallic bonds.
  • certain complexes held together by coordinate covalent bonds.

Is PubChem legit?

The system is maintained by the National Center for Biotechnology Information (NCBI), a component of the National Library of Medicine, which is part of the United States National Institutes of Health (NIH). PubChem can be accessed for free through a web user interface.

Is PubChem credible?

Reliable Web Tools PubChem is an open chemistry database from National Institutes of Health (NIH). It provides information on chemical structures, identifiers, chemical and physical properties, biological activities, patents, health, safety, toxicity data, and many others.

When did PubChem start?

2004
Since the launch in 2004, PubChem has become a key chemical information resource for scientists, students, and the general public. Each month our website and programmatic services provide data to several million users worldwide.

How do you cite PubChem compound?

To cite an original source of PubChem data use one of the following:

  1. Refer to attribution on the PubChem record.
  2. Cite publication linked to record, if present.
  3. Navigate to the source using our PubChem Data Sources page.