Chemistry Of Life Flashcards
1
Q
Trace element
A
Plants get them through their roots, while animals get them through the food they eat.
2
Q
Atom
A
An atom is the smallest part of an element
3
Q
Electron
A
Outer level of an atom
4
Q
Proton
A
Located in the nucleus
5
Q
Atomic number
A
Number of protons
6
Q
Mass number
A
Total number of protons and neutrons
7
Q
Ions
A
Charged particles when a neutral atom gains or loses electrons
8
Q
Isotopes
A
Atoms of the same element with different neutrons
9
Q
Compound
A
Pure substance made of 2+ elements
10
Q
Ionic bonds
A
Formed with a metal and nonmetal
11
Q
Covalent bond
A
When atoms share electrons
12
Q
Hydrogen bond
A
When hydrogen positive attracted to negative
13
Q
Solution
A
Homogeneous mixture two or more substances dispersed
14
Q
Element
A
A pure substance made of only one kind of atom.
