which of the following elements would have the highest melting point?>

a)K
b)Mg
C)Na
D)al
e)Ca

Calcium would have the highest, follwed by aluminum, magnesium, sodium, lowest melting point-potassium. Please double check

thank you i found that you are correct with the melting point around 1175k or so

You can check the melting points at www.webelements.com

To determine which of the given elements would have the highest melting point, you can refer to the periodic table and look for trends in the elements' properties, specifically their atomic structures.

In general, elements with higher melting points tend to have stronger metallic bonds. These bonds result from the delocalized electron structure in metals. The strength of metallic bonds depends on factors such as the number of valence electrons and the size of the atoms.

In the given options:
- Potassium (K) and Sodium (Na) are both alkali metals, which have relatively low melting points due to their weak metallic bonds.
- Magnesium (Mg) and Calcium (Ca) are alkaline earth metals, which have stronger metallic bonds compared to alkali metals and usually higher melting points.
- Aluminum (Al) is a metal, but it has a slightly different structure with covalent-like bonding due to the presence of d-orbitals. This makes it have a higher melting point compared to the other elements listed.

Based on this analysis, we can expect the elements' melting points to be in the following order from highest to lowest: Calcium (Ca) > Aluminum (Al) > Magnesium (Mg) > Sodium (Na) > Potassium (K).

To double-check the melting points of these elements, you can consult reliable sources such as the "WebElements" website, which provides detailed information about each element, including their melting points.