8. Identify the groups of the alkali metals gases
Given table : what is valency of chlovine
es from the
and neon? Why?
2
Be
li
Na
13 114
B С C
AU Si
IS
'N
р P
16 17 18
O
Ne
S
Mg
el Al

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?

What term describes technology that operates on an atomic level