Pure arsenic is usually "grey arsenic". It looks like, well, a metal. Other allotropes do exist, but quickly transform into grey arsenic under normal conditions.
Calcium in its normal state is a soft, silver-white metal that is quite reactive with air and water. It is typically found in the form of calcium carbonate in nature, as in limestone and chalk.
It is a yellow solid (normally in powder form) and it smells like Rotorua.
One must look into the acidity of arsenic acid, not just arsenic. Though the exact value of acidity is dependent on the ionization of the arsenic.
Potassium is a soft, silvery metal that is easily cut with a knife. In its normal state, it is a solid at room temperature and has a shiny appearance. It is highly reactive with water and oxygen, quickly forming oxides.
baking soda.
Arsenic has a metallic grey aspect.
it looks like gas,
solid
The appearance of francium is not known.
Californium has a silvery metallic appearance.
It is a shiny silver colored metal
Argon is a colorless, odorless gas in its normal state. It is a noble gas that is not reactive with other elements.
5 dots around AS.
Neptunium is a solid metal with a metallic appearance.
Titanium in its normal state is a silver-colored metal with a shiny surface. It is lightweight, strong, and resistant to corrosion.
It is a colorless noble gas, so you can't really see it.
Calcium in its normal state is a soft, silver-white metal that is quite reactive with air and water. It is typically found in the form of calcium carbonate in nature, as in limestone and chalk.