Question

1: The atomic number of carbon is 6 because?A. Has 3 protons and 3 neutrons B. Had 3 protons and 3 electrons C. Has 6 neutrons D. Has 6 protons 2: The total number of neutrons found in an isotope can be determined by?A. Subtracting the atomic number from the mass number B. Subtracting the mass number from the atomic number C. Determining how many protons are presentD. Looking at its group or family on the periodic table 3: As you move from left to right in the third period of the periodic table…A. Each group loses an outer electronB. Each group gains an outer electronC. Each group gains a neutron D. The number of outer electrons remains constant across the period 4: radioactive elements can emitA. Positively charged alpha radiation B. Negatively charged beta radiation C. Neutral gamma radiation D. All of the above 5: Radioactive decay occurs at a constant rate except A. When exposed to external temperature fluctuations B. When contained within a living sample C. Both A & B are correct D. None of the above 6: When running water is turned into a solid, it undergoes a:A. Physical changeB. Chemical change C. A chemical reaction, but not a chemical changeD. Compound shift 7: In a chemical reaction, the atoms in the reactants rearrange to form products with new…A. Physical properties B. Chemical properties C. Both A & BD. None of the above 8: Melting and evaporation typically require _______; while freezing and condensation typically require ______. A. The removal of heat; the addition of heat B. The addition of heat of heat; the removal of heat C. A physical change change; a chemical change D. A chemical change; a physical change 9: Those elements grouped together on the periodic table that are ductile, malleable, and good conductors of both electrical and thermal energy are called: A. Noble gases B. Halogens C. MetalsD. metalloids10: The atoms present at the beginning of a chemical reaction A. May be lost during the reaction in the form of heat energy B. Are transformed into different atoms during the reactions C. Simply rearrange during the reaction to form new molecules D. Can be substituted for other atoms in the presence of catalyst

Answer 1

The atomic number is the total number of protons that the atoms of a certain element have in their nucleus. It means that if the atomic number of carbon is 6, it is because it has 6 protons.

The correct answer is D. 6 protons.