Electron
Electronic
noun
An electricity child. What is a really small part of electricity? What makes up electricity? That would be the electron. This word can also refer to things that are electronic as well.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
電子レンジ
microwave
電子メール
電子カルテ
electronic medical record
カレーを電子レンジに入れました。
I put the curry in the microwave.
その電子ピアノを直すのには、いくらかかりますか？
How much does it cost to fix the electronic piano?
一年前から、紙の本ではなくて電子リーダーやタブレットで本をよんでいます。
Since a year ago, I've been reading books with an electronic reader and a tablet, not paper books.
電子は目で見ることができません。
You can't see electrons with your eyes.