American Military University - SCIN131 Week 2 Quiz (GRADED A)

Your quiz has been submitted successfully. 3 / 3 points `Which of the following statements is true as stated by the chemist Joseph proust? Question options: All atoms of a given element have a constant composition and are different than atoms of any other element. All samples of a given compound have the same proportions of their constituent elements. The nucleus is a dense region of positive charge that always contains protons and neutrons. Matter cannot be either created or destroyed in a chemical reaction. Hide Feedback this is the law of constant composition 0 / 3 points What is matter made up of at the most fundamental level? Question options: neutrons isotopes electrons atoms Hide Feedback All matter is composed of elements, and all elements are made of atoms; but matter occupies spaces and has mass. Review the building blocks of molecules in Chapter 2. 3 / 3 points How would you correctly write the atomic symbol of nitrogen? Question options: Ni Ng Nt N none of the above Hide Feedback Topic discussed in Chapter 3.6 See the periodic table. 3 / 3 points `The elements that touch the zig-zag line on the periodic table are known as Question options: metals nonmetals metalloids transition metals none of the above