What element group is poisonous?

What element group is poisonous?

thallium (Tl), chemical element, metal of main Group 13 (IIIa, or boron group) of the periodic table, poisonous and of limited commercial value. Like lead, thallium is a soft, low-melting element of low tensile strength. Freshly cut thallium has a metallic lustre that dulls to bluish gray upon exposure to air.

Which group contains the poisonous element arsenic as )?

Arsenic, atomic number 33 lies in between phosphorus and antimony in group 15, the so called Nitrogen group of the periodic table.

What group is CA?

Group 2
calcium (Ca), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table.

Is antimony poisonous?

Antimony toxicity occurs either due to occupational exposure or during therapy. Occupational exposure may cause respiratory irritation, pneumoconiosis, antimony spots on the skin and gastrointestinal symptoms. In addition antimony trioxide is possibly carcinogenic to humans.

Why is Group 7 called halogens?

Group 7 elements form salts when they react with metals. The term ‘halogen’ means ‘salt former’, which is why Group 7 elements are called halogens. In general the halogens comprise the most reactive group of non-metals. The halogens are so reactive that they cannot exist free in nature.

Which is the most harmful element in the human body?

Carbon – Carbon, although being a major component in life itself it still can be detrimental to humans. In the human body we exhale a form of Carbon called CO2. Carbon Dioxide is one of the primary Greenhouse gases which is released by humans.

What kind of poison is used in atomic clocks?

Cesium is used in atomic clocks and it is very radioactive. Polonium – Polonium is very scarce as it is hard to produce. it is used to remove any static electricity from machinery. Polonium -210 has been used for poisoning but it can be easily excreted through feces.

What are the names of Group 2 elements?

Group 2 elements are: 1 Beryllium 2 Magnesium 3 Calcium 4 Strontium 5 Barium 6 Radium

What are the names of the group 7 halogens?

Group 7A (or VIIA) of the periodic table are the halogens: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). The name “halogen” means “salt former”, derived from the Greek words halo-(“salt”) and -gen(“formation”). The Group 7A elements have seven valence electrons in their highest-energy orbitals