56. In the periodic table, how many elements are found in each of

the following?

a. the halogen family

b. the alkali family

c. the lanthanide series

d. transition metals

Was is an intial observation

what combination will result in a acidic solution? a reaction of strong acid and strong base b reaction of strong acid and weak base c a reaction of weak acid and strong base d reaction of weak acid and weak base

Which element in the third period would you expect to have the larger atomic radius, sodium (Na) or Sulfur (S) ? A. Sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. B.

A gold coin contains 3.47*10^23 gold atoms. what is the mass of the coin in grams

3s2 what is the period number

Nonrenewable resources are?

Watch the animation, then check off the samples that will conduct electricity. Check all that apply. View Available Hint (s) Check all that apply. NaCl solution Solid NaCl Solid sugar Sugar solution

Burning wood represents a chemical change. True or False?

Why are phosphates in laundry detergent

What is the name of the scientist who discovered the electron