What input formats does the tool support for identifying elements?

You can enter chemical symbols (e.g., Fe), atomic numbers (e.g., 26), or English element names (e.g., iron).

Can I look up multiple elements at the same time?

Yes, you can input multiple elements separated by commas, spaces, semicolons, or newlines to compare them in a single query.

What additional element details can be included in the output?

Enabling full details includes properties such as chemical category, standard state, electronegativity, melting/boiling points, and density.

How can I sort the resulting element table?

You can sort the results by your original input order, atomic number, atomic weight (ascending), or alphabetically by symbol.

Can I customize the precision of the atomic weights?

Yes, you can adjust the decimal places option to display values with up to 8 decimal places of precision.

Elysia Tools

Navigation

Math & Numbers

Molar Mass Lookup

Look up the molar mass (atomic weight) of several elements at once by symbol, atomic number, or name, as a sortable comparison table.

Execution

Run this tool

Fill in the form, run the tool, and review the result in one place.

Prepared example runs

Click an example to fill the form automatically. File inputs still need an upload.

1 examples

Atomic weights of three transition metals

Look up Fe, Cu and Zn at once: Fe 55.84, Cu 63.55, Zn 65.4 g/mol.

{"result":"3 element(s): Fe = 55.84 g/mol, Cu = 63.55 g/mol, Zn = 65.4 g/mol.","metadata":{"result":{"count":3,"rows":[{"symbol":"Fe","name":"Iron","atomicNumber":26,"atomicWeight":55.84},{"symbol":"Cu","name":"Copper","atomicNumber":29,"atomicWeight":63.55},{"symbol":"Zn","name":"Zinc","atomicNumber":30,"atomicWeight":65.4}]}}}

Inputs

Set the required fields, then run the tool.

4 options

ContentPaste or type the main input values.1

Elements (symbols or atomic numbers)textareaRequiredEach token may be an element symbol (Fe), an atomic number (26), or an English element name (iron). Separators: comma, space, semicolon, or new line.

SettingsAdjust formats, ranges, numbers, and modes.2

Sort ByselectOptionalDecimal PlacesnumberOptional

TogglesEnable or disable optional behavior.1

Include full element detailscheckboxOptionalEnabled when checkedWhen on, each row also carries category, standard state, electronegativity, melting/boiling point, density, etc.

Result

Ready for a run

Run the tool to preview files, text, structured data, or streamed output here.

Samples

Molar Mass Lookup

Run this tool

Prepared example runs

Inputs

Result

Examples that match this tool

Continue with connected tools and hubs

Prepared example runs

Inputs

Result

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Overview

When to use

How it works

Use cases

Examples

1. Transition Metal Weight Comparison

2. Halogen Property Analysis

FAQ

Web Image Processing Python Samples

Android Image Processing Java Samples

Android Image Processing Kotlin Samples

Web Image Processing Rust Samples

Absolute Value Calculator

Decimal to Fraction Calculator

Final Grade Calculator

Fraction to Decimal Calculator

Audio Encoding and Format Conversion Tools

Image Format Conversion and Animated Export Tools

JSON Interchange and Format Translation Tools

Color Space Conversion Tools for Web and Print