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2007-10-14 07:13:34 · 2 answers · asked by amityville3132002 1 in Science & Mathematics Chemistry

2 answers

1. Both Mg and ca are the minerals that are essential nutrition to human beings.
2. Calcium is also one of the main composition in cements and mortars. Without it our houses and offices would be quite different.

2007-10-14 09:16:41 · answer #1 · answered by Hahaha 7 · 0 0

The alkaline earth elements are found in many common materials. For example, calcium ions are a major component of your bones, magnesium is used in a variety of metal alloys, strontium is used in television tubes, and barium compounds are used as X-ray contrast agents. Radium is a very rare radioactive material. Beryllium is a toxic and carcinogenic material that requires specialized handling.

2007-10-18 14:11:18 · answer #2 · answered by metu 1 · 0 0

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