Calcium and carbon
Carbon.
There are only 2 valence electron found in calcium.
Calcium is commonly found in milk and milk products
Calcium isn't usually found in its elemental state, but can be found in many minerals, such as gypsum and calcite.
Not in modern pencils. They contain graphite.
There are no compounds found in calcium. Calcium is an element.
There are many pencils and pens that are considered good quality for artists. This includes pencils with a vareity of softness from HB to 6B, and technical ink pens with a fine tip.
It is a new type of led the scientist use for pencils now in stead of toxic ones!
Graphite is used in pencils.
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Calcium phosphate and calcium carbonate are found in bones .
calcium is always inorganic, irrespective of where it is found
Calcium is found in milk! Calcium keeps your teethand bones healthy. And improve bone strength.
calcium, potassium, zinc, iron, phosphorus
Common pencils are not metallic.
Carbon.