Look Up Chemical Compound Properties
Identify chemical compounds by name, CAS number, or SMILES string and retrieve molecular weight, formula, and structure data.
Look Up and Compare Periodic Table Elements
Get detailed properties for any element and compare elements side by side across physical, chemical, and electronic characteristics.
Quick answer: Use the Chemistry Lookup tool through ToolRouter to look up and compare periodic table elements directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
ToolPeriodic table reference questions come up constantly in chemistry, materials science, and engineering — and the answers are never quite where you need them. Atomic weight, electronegativity, ionisation energy, electron configuration, melting point, and density are all needed for different calculations, yet pulling them together from standard references takes time and error-prone transcription.
The element_info and compare_elements skills return complete property sets for any element, and allow direct comparison between multiple elements across all key parameters. The data is drawn from authoritative sources and covers physical, chemical, electronic, and nuclear properties.
Chemistry and physics students solving problems, materials engineers selecting alloy components, educators building comparative curriculum materials, and researchers working across element families all use this as their first-stop element reference.
How to look up and compare periodic table elements with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Connect ToolRouter
1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Let Claude set you up Open Claude
Claude combines element property data with chemical reasoning — explaining why a particular electronegativity value matters for bonding, what an electron configuration tells you about reactivity, or why two elements with similar atomic numbers behave so differently. It connects the numbers to the chemistry.
How to look up and compare periodic table elements
Once connected (see setup above), use the Chemistry Lookup tool — the same steps work with Claude, ChatGPT, Microsoft Copilot, OpenClaw, and any MCP client:
- Ask: "Get element properties for silicon using chemistry-lookup"
- Claude returns atomic number, weight, electron configuration, and physical properties
- Ask: "How do silicon's properties make it useful for semiconductors?"
- Request: "Compare silicon and germanium using chemistry-lookup"
Example prompt
Try this with the Chemistry Lookup tool
Look up the properties of lithium, sodium, and potassium using chemistry-lookup. Compare their electronegativity, ionisation energies, and atomic radii, and explain the trend you see.
Tips
- Ask Claude to explain property trends across a period or group for deeper understanding
- Compare elements across a transition metal row to understand d-orbital effects
- Ask about industrial applications alongside raw properties for real-world context
Frequently Asked Questions
How do I look up and compare periodic table elements with an AI assistant?
Get detailed properties for any element and compare elements side by side across physical, chemical, and electronic characteristics. Connect the Chemistry Lookup tool to Claude, ChatGPT, Microsoft Copilot, and OpenClaw through ToolRouter, then ask the assistant in plain language. For example: Ask: "Get element properties for silicon using chemistry-lookup" Claude returns atomic number, weight, electron configuration, and physical properties
Which AI assistants can look up and compare periodic table elements?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all look up and compare periodic table elements using the Chemistry Lookup tool through ToolRouter, with no API keys or coding required.
What does the Chemistry Lookup tool do?
Look up chemical compounds, elements, safety data sheets, and molecular properties.
Related Use Cases
Access Chemical Safety Data and Hazard Information
Retrieve safety data sheet information including hazard classifications, handling precautions, and emergency procedures for any chemical.