How many particles are in 17.8 grams of Ba(ClO3)2

What royal scientist used the 29th day of frozen vapor to encounter elements for mastering new culinary creations?

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.