ALKALI METALS, group one, lithium (3Li), one valence electron, form positive ions, react vigorously with water, sodium (11Na), potassium (19K), lose one electron in chemical reactions, HALOGENS, group seven, chlorine (17Cl), seven valence electrons, form negative ions, react with hydrogen and sodium, fluorine (9F), bromine (35Br), iodine (53I), can gain one electron into the outer shell, NOBLE GASES, group zero, helium (2He), 2 or 8 valence electrons, neon (10Ne), argon (18Ar), krypton (36K), almost completely unreactive, it takes a lot of energy to add or remove electrons from these atoms
0%
GROUPS (SIMPLE)
Share
Share
by
Drkirillsadikov
Edit Content
Save
Like
Print
Embed
More
Assignments
Leaderboard
Show more
Show less
This leaderboard is currently private. Click
Share
to make it public.
This leaderboard has been disabled by the resource owner.
This leaderboard is disabled as your options are different to the resource owner.
Revert Options
Group sort
is an open-ended template. It does not generate scores for a leaderboard.
Log in required
Visual style
Fonts
Subscription required
Options
Switch template
Show all
Open results
Copy link
QR code
Delete
Continue editing:
?
