Chemistry Midterms!!!! (end my misery)

What is the equation for finding density?

• D = m/v

• D = w/f

• D = h/m

• none of these you dumb dumb

You have a block of material with a mass of 500 grams, and you measure its volume to be 250 cubic centimeters.

you have a liquid with a density of 1.2 g/cm3 and a volume of 150 cm3. what is the mass?

you have a solid object with a density of 0.8 g/cm3 and a mass of 400 grams. what is the volume?

What is an Atomic Radius?

• measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.

• measure of the distance between the center of the nuclei of two ions that barely touch.

• half the distance between the nuclei of identical atoms that are bonded together

• The energy required to remove one electron from a neutral atom of an element

What direction on the periodic table do you need to go to in order for the atomic radius to increase?

• Left to right

• Right to left

• Top to bottom

• Bottom to top

Atomic radii cannot be measured directly because the electron cloud does not have a defined ____.

• Mass

• Charge

• Outer edge

• Probability

What is Ionic Radius?

• measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.

• measure of the distance between the center of the nuclei of two ions that barely touch.

• half the distance between the nuclei of identical atoms that are bonded together

• The energy required to remove one electron from a neutral atom of an element

What direction on the periodic table do you need to go to in order for the ionic radius to increase?

• Left to right

• Right to left

• Top to bottom

• Bottom to top

Where does the anionic energy stop increasing?

• Period 8

• Period 13

• Top to bottom

• Period 12