https://padlet.com/hector_2003_ma/lv7uexavgvhg There are the same number of protons as electrons in an atom en-us 2017-02-13 14:56:46 UTC 2017-05-17 03:22:19 UTC hello@padlet.com hector_2003_ma https://padlet.com/hector_2003_ma/lv7uexavgvhg/wish/153442067 there are the same number of protons as electrons in an atom]]> 2017-02-13 15:00:19 UTC https://padlet.com/hector_2003_ma/lv7uexavgvhg/wish/153442067