Flashcards
Sem título
Flashcards do conjunto (13)
- 1ATOMIs the smallest piece of an element that still represents that element.
- 2ELECTRONIs a particle with one negative charge.
- 3NUCLEUSIs when most of the atom´s mass and positive charge is concentrated in a small area in the centerof the atom.
- 4PROTONIs an atomic particle that has one positive charge.
- 5NEUTRONIs a neutral particle that exists in the nucleus of an atom.
- 6ELECTRON CLOUDIs an area around an atomic nucleus where an electron is most likely to be located.
- 7ATOMIC NUMBERThe atomic number is the whole number listed with each element on the periodic table.
- 8ISOTOPESAre atoms of the same element that have different numbers of neutrons.
- 9MASS NUMBEROf an atom is the sum of the number of protonsand neutrons in an atom.
- 10AVERAGE ATOMIC MASSOf an element is the average mass of the element´s isotopes, weighted according to the abundance of each isotope.
- 11RADIOACTIVEThey are called elements that spontaneously emit radioaction.
- 12NUCLEAR DECAYIs a process that occurs when an unstable atomic number nucleus changes into another more stable nucleus by emitting radiaction.
- 13IONIs an atom that is no longer neutral because it has gained or lost electrons.
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- FlashCards sobre Sem título, criado por María Ximena Rosales García em 04-06-2021.
- Criado por
- María Ximena Rosales García
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