1) What is Matter a) The temperature at which a liquid changes to a gas. (Physical Change) b) Anything that has mass and takes up space. Matter can exist as a solid, liquid or gas. c) Subatomic particle with no charge (neutral), the same mass as a proton, and located in the nucleus of an atom. d) The center of the atom - made up of protons and neutrons 2) What is Mass a) The amount of matter in an object - measured in grams b) the process of a solid changing to a gas (ex: dry ice) c) Subatomic particle with a negative charge and located outside the nucleus. d) the average mass of all isotopes of an atom. It is equal to the number of protons plus neutrons in the nucleus of an atom 3) What is Atom a) The smallest unit of matter that retains the identity of a substance b) The center of the atom - made up of protons and neutrons c) The number of protons in the nucleus of an atom. This number identifies the atom as a specific element. d) Subatomic particle with a negative charge and located outside the nucleus. 4) What is Isotope a) Father of the Modern Periodic Table b) A substance that cannot be broken down by any means. Made up of one type of atom c) The center of the atom - made up of protons and neutrons d) each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but same chemical properties 5) What is Nucleus a) The temperature at which a liquid changes to a gas. (Physical Change) b) change in state from a liquid to a gas (+heat) c) The center of the atom - made up of protons and neutrons d) change in state from a gas to a liquid (-heat) 6) What is Proton a) Subatomic particle with no charge (neutral), the same mass as a proton, and located in the nucleus of an atom. b) Subatomic particle with a negative charge and located outside the nucleus. c) Subatomic particle with a positive charge and located in the nucleus of an atom. The number of protons gives the atom its identity. d) The smallest unit of matter that retains the identity of a substance. 7) What is Neutron a) the process of a solid changing to a gas (ex: dry ice) b) The temperature at which a solid changes to a liquid. (Physical Change) c) Subatomic particle with no charge (neutral), the same mass as a proton, and located in the nucleus of an atom. 8) What is Electron a) electrons located on the last shell or energy level of an atom b) The temperature at which a liquid changes to a gas. (Physical Change) c) Subatomic particle with a negative charge and located outside the nucleus. d) change in state from a liquid to a gas (+heat) 9) What is Atomic Number a) the average mass of all isotopes of an atom. It is equal to the number of protons plus neutrons in the nucleus of an atom b) A substance that cannot be broken down by any means. Made up of one type of atom. c) Father of the Modern Periodic Table d) The number of protons in the nucleus of an atom. This number identifies the atom as a specific element. 10) What is Atomic Mass a) the average mass of all isotopes of an atom. It is equal to the number of protons plus neutrons in the nucleus of an atom b) The amount of matter in an object - measured in grams c) The temperature at which a liquid changes to a gas. (Physical Change) d) change in state from a gas to a liquid (-heat)

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