Science Vocab

Across
2.	a chemical element that mostly lacks the characteristics of a metal
4.	an ion with a positive charge
6.	a distinct and homogeneous form of matter
9.	an ion with a negative charge
14.	the distribution of electrons of an atom or molecule in atomic or molecular orbitals
18.	a compound composed of a monatomic metal cation and a monatomic nonmetal anion
19.	name given to a horizontal row of the periodic table
20.	a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity
23.	an electron of an atom located in the outermost shell

Down
1.	a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties
3.	a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds
5.	a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction
7.	any of the chemical elements belonging to the s and p blocks of the periodic table
8.	an element whose properties are intermediate between those of metals and solid nonmetals or semiconductors.
10.	a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions
11.	name given to a vertical column of the periodic table
12.	A figure, letter, or symbol written below and to the side of another
13.	a group of elements with similar chemical properties
15.	a chemical bond that involves the sharing of electron pairs between atoms
16.	a substance formed from two or more elements chemically united in fixed proportions
17.	a substance composed of exactly two different elements, which are substances that cannot be simplified further by chemical means
21.	the general tendency of a set of data to change
22.	a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule