About this app
全面元素信息宝库 完整呈现 118 种化学元素，涵盖原子序数、原子质量、化学符号等基础信息，深入展示电子层数、电子排布、电离能等详尽数据，一键点击，元素奥秘尽在掌握 。 附加元素的历史知识、百科信息，生动讲述元素发现历程与关键应用，助您深入理解元素内涵 。
Audience growth
Ratings growth
7-day gain
+0
Ratings / day
0.0
30-day gain
+0
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
Current
Free
Historical low
Free
Paid → free
0×
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 8, 2026 · 2:52 AM Free
Screenshots
