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1
The table shows the physical properties of
four elements. Which element is classified as
a metalloid?
(25 Points)
Element
Luster
Titanium
Shiny,
white
Malleability
Can be rolled into
thin sheets easily
Brittle, breaks
easily
Can be shaped
into thin sheets
Selenium
Conductivity
Conducts heat
And electricity
Poor conductor of
heat or electricity
Conducts heat
and electricity
Semi-conductor
of electricity and
heat
Dull
Potassium
Silvery,
shiny
Can somewhat be
shaped into sheets
Polonium
Metallic
Titanium
Selenium
Potassium
Polonium

whats the meaning of /

the law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products. because atoms are only rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both the reactants and products

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.

the answer is na (sodium)