Chapter 3 Vocabulary Missing Letters

Name: ______________________   Date: ____________

Write the missing letters on the lines to finish each word.

1.
l i e t l s
Any of the monovalent ___ of group I of the periodic table (plural)
2.
a i c n m r
The order of an element in Mendeleyev's table of the elements
3.
i o
4.
t o n
5.
e l t n
An elementary particle with negative charge
6.
e y v e l
7.
g p
Two or more atoms bound together as a single unit and forming part of a molecule
8.
a l o s
Any of five related nonmetallic elements that are all monovalent and readily form negative ions (plural)
9.
o i t i o
The condition of being dissociated into ions
10.
m a s n b
The sum of the ___ of neutrons and protons in an atomic nucleus
11.
e t s
Any of several chemical elements that are usually shiny solids that conduct heat or electricity (plural)
12.
l a s s
13.
m l
The ___ weight of a substance expressed in grams
14.
e o n
An elementary particle with 0 charge and mass about equal to a proton
15.
r i d
An amount of time
16.
p t o
A stable particle with positive charge equal to the negative charge of an electron
17.
m i c o n c t
18.
e e e e t o n
An ___ in the outer shell of an atom which can combine with other atoms to form molecules
19.
o b a e s
20.
n c u
Center of an atom or a cell
21.
o i a
Of or relating to an ___
22.
n m t a
A chemical element lacking typical metallic properties (plural)
23.
i s p s
One of two or more atoms with the same atomic number but with different numbers of neutrons (plural)