acs.org 的前十大競爭對手

rsc.org

A community-wide movement towards sustainable laboratory practices

pubchem.ncbi.nlm.nih.gov

PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature citations and more.

chem.libretexts.org

The LibreTexts libraries collectively are a multi-institutional collaborative venture to develop the next generation of open-access texts to improve postsecondary education.

ptable.com

Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.

sigmaaldrich.com

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sciencenotes.org

Science Notes is a website which uses cookies. This document contains information on what is a cookie, how we use our cookies, and methods to opt out of using cookies if you desire.

iop.org

Promoting physics and bringing physicists together for the benefit of all

aps.org

The American Physical Society is a nonprofit membership organization working to advance physics by fostering a vibrant, inclusive, and global community dedicated to science and society.

aip.org

If implemented, new vetting requirements could dissuade international researchers who do not need visas from visiting the US.