![4 elements that make up 96 of living matter 4 elements that make up 96 of living matter](https://images.slideplayer.com/24/7501540/slides/slide_4.jpg)
Which electrons have more potential energy: the electrons closer to the nucleus of the electrons farther away from the nucleus? The penny on top of the building has more potential energy because of its altitude. Which has more potential energy: a penny on the ground or a penny on top of a building? Why?
![4 elements that make up 96 of living matter 4 elements that make up 96 of living matter](https://cdn.mos.cms.futurecdn.net/aDMve3EbPYTmaPJBNne6ZM-480-80.jpg)
Most of the mass of an atom is in the nucleus. It is used in radioactive dating(C-14), monitoring biological processes, and diagnosing illness. The nucleus of a radioactive isotope decays spontaneously, giving off particles and energy. What is a radioactive isotope and how are they used in science? How many protons, electrons, and neutrons does this element have?Ītoms of the same element that have different amounts of neutrons. What unit of measurement is used for atoms and subatomic particles? The mass of an electron is only _ as much as the mass of a proton or neutron. Electrons moving at nearly the speed of light form a cloud around the nucleus. Protons and neutrons are found in the nucleus. What is found in the nucleus? What is found outside the nucleus in the cloud? What are the three main subatomic particles and what are their charges? What is the smallest unit of matter the still retains the properties of an element? Trace elements are elements that an organism needs in very small quantities. What are trace elements and what are some examples of them? What are some elements that make up 4% of living matter? What four elements make up 96% of living matter? Is O 2 an element or a compound? Is NaCl an element or a compound? Compounds can be broken down into other substances and consist of two or more different elements. What is the difference between elements and compounds?Įlements cannot be broken down into other substances and consist of one element.