1) which type of radioactive emission has a positive charge and weak penetrating power?

a) alpha particle
b) beta particle
c) gamma ray
d) neutron

In one or two grammatically correct sentences, write a definition for the term molecule geometry

When a beta particle is emitted, the mass number of the nucleus a. decreases by one b. increases by one c. remains the same d. decreases by two

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.