Karteikarten
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Karten in diesem Stapel (17)
- 1what is the electronic configuration of aluminium ( aluminum has 13 electrons)2,8,2
- 2give the name of the type of metal that form coloured compoundstransition metals
- 3describe the structure of an atoman atom contains the nucleus . inside the nucleus would be protons and neutrons which are surrounded by electrons in shells
- 4what is the relative mass of a proton , neutron and electronproton - 1
neutron -0
electron-1/1840 - 5what is the relative charge of a proton , neutron and electronproton =+1
neutron= 0
electron= -1 - 6what are the atomic number and atomic mass of an atomatomic number is the amount of protons in an atome ( also electrons because a electrons have the same number of protons )
atomic mass - the total amount of protons and neutrons in the nucleus - 7what is RELATIVE atomic massbecause the mass of an atom is incredibly small , scientists use relative atomic mass instead o it's mass in kilograms
- 8how are elemnts arranged in the periodic tablethe elemnts are arranged in oreder of increasing atomic mass
- 9define an isotopean isotope is an atom of the same element which has the same number of proton but a different amount of neutrons
- 10how do you work out the relative atomic mass of the an element from the relative masses and abundances of it's isotopes(% of isotope 1 × mass of isotope 1) + (% of isotope 2 × mass of isotope 2) ÷ 100
- 11what is electronic configurationelectronic configuration is the way in which electrons are arranged in an atom
- 12what do the periods and groups tell you in the periodic tablegroups tell you the number of electrons in the outer shell and the periods in the periodic table tell you the amount of shell the atom have
- 13what is a ionan ion is an atom which contains positive and negative charges
- 14do metals gain or lose electronmetal loose electrons because they only have 1-4 electrons in their outer shell
- 15what are ions that loose electrons and becme positively charged calledcations
- 16define an anionan anion is a non-metal which gains electrons and becomes negatively charged
- 17describe the formation of a Na+ ionsodium ion has
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- Karteikarten am Ohne Titel, erstellt von Amisha Parmar am 21/11/2015.
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- Amisha Parmar
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