can you tell me the physical characteristics of the last element from the above list?
Melts at 842 °C, boils at 1494 °C,  density is 1.55 g/cm, Calcium is harder than lead
Calcium
Calcium metal melts at 842 °C and boils at 1494 °C; these values are higher than those for magnesium and strontium, the neighbouring group 2 metals. It crystallises in the face-centered cubic arrangement like strontium; above 450 °C, it changes to an anisotropic hexagonal close-packed arrangement like magnesium. Its density of 1.55 g/cm is the lowest in its group. Calcium is harder than lead but can be cut with a knife with effort. While calcium is a poorer conductor of electricity than copper or aluminium by volume, it is a better conductor by mass than both due to its very low density. While calcium is infeasible as a conductor for most terrestrial applications as it reacts quickly with atmospheric oxygen, its use as such in space has been considered.
where does the majority of maple syrup come from Canada from which trees is this syrup made? Sugar maple (Acer saccharum), the black maple (A. nigrum), and the red maple (A. rubrum) why these trees are used to make this syrup? Because of the high sugar content (roughly two to five percent) in the xylem sap of these species. what nutritional values it provides? Water, carbohydrates (sugars), manganese, riboflavin, zinc and calcium
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Calcium [SEP] Physical
Calcium metal melts at 842 °C and boils at 1494 °C; these values are higher than those for magnesium and strontium, the neighbouring group 2 metals. It crystallises in the face-centered cubic arrangement like strontium; above 450 °C, it changes to an anisotropic hexagonal close-packed arrangement like magnesium. Its density of 1.55 g/cm is the lowest in its group. Calcium is harder than lead but can be cut with a knife with effort. While calcium is a poorer conductor of electricity than copper or aluminium by volume, it is a better conductor by mass than both due to its very low density.