How many valence electrons are found on the outer most level of lithium (Li) ?

A: 1

B: 2

C: 3

D: 4

Given an unknown mixture consisting of two or more substances, explain one technique that could be used to determine whether that mixture is a true solution, a colloid, or a suspension

Which of the following provides evidence to support Thomson's hypothesis about electrons? Gold foil experiment Cathode ray experiments Spectrum of colors emitted by gas Radiation produced when beryllium is bombarded with alpha particles

I need some new friends lol

NaOH + H3PO4 → Na3PO4 + H2O

Do atoms make up all matter

What is the cornaviris?

How to find the moles of vinegar if you only know what the volume is

Be sure to answer all parts. A concentration cell consists of two Sn/Sn2 + half-cells. The electrolyte in compartment A is 0.23 M Sn (NO3) 2. The electrolyte in B is 0.87 M Sn (NO3) 2.

Explain why the radius of an atom cannot be measured directly. (6.3)

Which measurement represents the largest volume? question 7 options: 4.6 l 4.6 * 10-3 l 46 cl 460 ml all represent the same volume?