https://padlet.com/2020tatiana00/hr403i6yw1mb Made with no regrets, whatsoever en-us 2018-04-03 14:14:00 UTC 2025-09-24 17:14:26 UTC hello@padlet.com 2020tatiana00 https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248128385 An atom is the smallest particle into which an element can be divided and still be the same substance.]]> 2018-04-03 14:15:04 UTC https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248128385 2020tatiana00 https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248128931 The negatively charged particles that thomson discovered are now called electrons.]]> 2018-04-03 14:16:06 UTC https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248128931 2020tatiana00 https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248129730 Neutrons are the particles of the nucleus that have no electric charge.]]> 2018-04-03 14:17:40 UTC https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248129730 2020tatiana00 https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248130257 The atomic mass of an element is the weighted average of the masses of all the naturally occurring isotopes of that element]]> 2018-04-03 14:18:41 UTC https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248130257 2020tatiana00 https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248131208 The mass number is the sum of the protons and neutrons in an atom.]]> 2018-04-03 14:20:32 UTC https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248131208 2020tatiana00 https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248131586 the number of protons in the nucleus of an atom the atomic number is the same for all atoms of an element.]]> 2018-04-03 14:21:18 UTC https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248131586 2020tatiana00 https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248202409 in physical science an atoms central region which is made up of protons and neutrons.]]> 2018-04-03 16:41:06 UTC https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248202409 2020tatiana00 https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248202560 a subatomic particle that has a positive charge and that is found in the nucleus of an atom.]]> 2018-04-03 16:41:30 UTC https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248202560 2020tatiana00 https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248202644 an atom that has the same number of protons as other atoms of the same element do but that has a different number of neutrons.]]> 2018-04-03 16:41:43 UTC https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248202644 2020tatiana00 https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248202821 a region around the nucleus of an atom where electrons are most likely to be found.]]> 2018-04-03 16:42:12 UTC https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248202821 2020tatiana00 https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248203236 a unit of mass that describes the mass of an atom or molecule.]]> 2018-04-03 16:43:18 UTC https://padlet.com/2020tatiana00/hr403i6yw1mb/wish/248203236