10. Give the number of protons, electrons, and neutrons in strontium-88. O 38 protons, 38 electrons, and 88 neutrons

O 38 protons, 38 electrons, and 38 neutrons

O 38 protons, 38 electrons, and 50 neutrons

O 88 protons, 38 electrons, and 88 neutrons

C.because protons and electrons are equal they will be 38 so neutron will be 50

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.

the answer is option a.