Karteikarten
Ohne Titel
Karten in diesem Stapel (17)
- 1what is an atom ?an atom is a small building block of particles
- 2what is an element ?an element is a substance which is made of one type of atom
- 3what is the nucleus made up of ?protons and nuetrons
- 4what is charge for protons ?it is positively charged
- 5what is the charge for electron ?electrons are negative
- 6what is a periodic table?the list of all elements known to man
- 7how many elements are in the periodic table?there are 118 elements in the periodic table
- 8what is the electronic configuration?electron configuration is the distribution of electrons of an atom or molecule (or other physical structure)
- 9how many electrons fit in the first shell?Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons
- 10what is an electronic shell ?An electron shell is the outside part of an atom around the atomic nucleus
- 11where is the nucleus placed?the nucleus is placed in the centre
- 12what is covalent bonding?this happens when a non metallic atom bond with each other
- 13what is ionic bonding ?this occurs when elements bond with non metallic elements
- 14what are ions ?an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
- 15what are cations ?a positively charged ion.
- 16what are the three element block ?transition,lanthanides,actinides
- 17what are the periodic groups ?a group (also known as a family) is a column of elements in the periodic table of the chemical elements.
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- Karteikarten am Ohne Titel, erstellt von zak ali am 11/05/2016.
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