Why the two isotopes of bromine have the same chemical properties.

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

Which atom or ion is the largest? 0 a. 0 0 0 0 e. li

Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)