1 / 8

The periodic table

The periodic table. Calcium. Atomic number : 20 Atomic weight : 40.078 Melting Point : 839 C Boiling Point: 1484 C Electron Configuration : [Ar]4s2 Common Ion : Ca+2 Percent by Mass in Body : 1.5. Calcium. Zinc. Atomic Number : 30 Mass Number : 65.39 Melting pt : 420ºC

kbuchanan
Download Presentation

The periodic table

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The periodic table

  2. Calcium • Atomic number: 20 • Atomic weight: 40.078 • Melting Point: 839 C • Boiling Point: 1484 C • Electron Configuration: [Ar]4s2 • Common Ion: Ca+2 • Percent by Mass in Body: 1.5

  3. Calcium

  4. Zinc • Atomic Number : 30 • Mass Number: 65.39 • Melting pt: 420ºC • Boiling pt: 907ºC • Electron Configuration: [Ar] 4s²3d^10 • Oxidation States: +2 • Percent by mass in Body: <.05

  5. Zinc

  6. Alkaline Earth Metals • Occur naturally only in compounds. • React with water to produce alkaline solutions • All alkaline earth elements have an oxidation number of +2, making them very reactive. • They are all metals with a shiny, silvery-white color

  7. Transition Elements • All are metals and most occur naturally in combination with other elements. • These elements are very hard, with high melting points and boiling points. • High electrical conductivity • Positive oxidation states • Very hard

  8. Why Zinc is different • Since it only forms one oxidation state, it doesn’t have the ability to produce color. • It doesn’t have the usually high melting and boiling points that most transition metals do, therefore it isn’t the best conductor of electricity like its other group members.

More Related