Question

12 what are the six metalloids on the penodic table?--boron b silicon germanium arsenic antimony and tellurium 13. please give the elemental classification (metal, non metal, metalloid) of the following elements a. hydrogen_______ d. polonium_____ b. helium_____ e. fluonne_____ c. silicon_____ f. neon_______

Explanation:

• Hydrogen: Non - Metal. It has properties typical of non - metals such as being a gas at room temperature and having a relatively high electronegativity.
• Helium: Non - Metal. It is a noble gas (a type of non - metal) with a full valence shell and is chemically inert under normal conditions.
• Silicon: Metalloid. It has properties intermediate between metals and non - metals, such as some electrical conductivity but not as high as most metals.
• Polonium: Metal. It has metallic luster and some metallic properties like being a good conductor of heat (to some extent).
• Fluorine: Non - Metal. It is a highly reactive non - metal gas with a very high electronegativity.
• Neon: Non - Metal. It is a noble gas (non - metal) with a full valence shell and is chemically inert.

Answer:

a. Non - Metal
b. Non - Metal
c. Metalloid
d. Metal
e. Non - Metal
f. Non - Metal