chemiste 0.0 / 5 ? ChemistryAtomsThe Periodic TableGCSECCEA Created by: DionCreated on: 21-10-14 21:46 what is the simplest particle that can live on its own an Atom 1 of 22 what are the 3 subatomic particles atoms can be split into protons, electrons and neutrons 2 of 22 what is the mass charge and location of a neutron mass= 1 charge= 0 location= nucleus 3 of 22 what is the mass charge and location of a proton mass= 1 charge= +1 location= nucleus 4 of 22 what is the mass charge and location of an electron mass= 1/1840 charge= -1 location= shells 5 of 22 what is the atomic number the number of protons 6 of 22 what is the mass number the number of protons and neutrons 7 of 22 what are atoms neutral 8 of 22 what are unreactive non-metals called nobel gases 9 of 22 which group are nobel gases group O 10 of 22 what is a nobel gas an atom with a full outer shell 11 of 22 how many elements are there approximately 120 12 of 22 what is different about Dmitri Mandeleev's periodic table the elements were ordered by atomic mass and there were gaps 13 of 22 what is our periodic table like now the elements are ordered by increasing atomic number and there are no gaps 14 of 22 rows are called... periods 15 of 22 columns are called.... groups 16 of 22 what is the period number equal to the number of electron shells 17 of 22 what is the group number equal to the number of electrons in the outer shell 18 of 22 what does group 1 contain alkali metals, the most reactive metals 19 of 22 what does group 7 contain the halogens, the most reactive non-metals 20 of 22 what does group O contain the nobel gases, unreactive non-metals 21 of 22 who invented the periodic table dmitri Mandeleev 22 of 22
Comments
No comments have yet been made