Study For Bio 114 Ch. 1

Front 1

Anthing that takes up space and has mass.

Back 1

matter

Front 2

A Substance that can be cannot be broken down to other substances by chemical reactions.

Back 2

element

Front 3

A substance consisting of two or more elements combined in a fixed ratio.

Back 3

compound

Front 4

___ elements that are required by an organism in only minute quanties.

Back 4

Trace

Front 5

The smallest unit of matter that still retains the properties of an element.

Back 5

atom

Front 6

Apart of the atom and it is electrically neutral.

Back 6

Neutron

Front 7

This is in the atom with a positive charge.

Back 7

Proton

Front 8

___ is on the outside of the atom and it is negatively charged.

Back 8

electron

Front 9

Protons and neutrons are packed together tightly in a dense core, or ____

Back 9

atomic nucleus

Front 10

The number of protons is called ___

Back 10

atomic number

Front 11

The sum of protons and neutrons in the nucleus of the atom.

Back 11

mass number

Front 12

The total mass of an atom.

Back 12

atomic mass

Front 13

All atoms of a given element have the same number of protons, but some atoms have more neutrons than other atoms of the same element and these are called ___

Back 13

isotopes

Front 14

___ is one in which the nucleus decays spontaneously, giving off particles and energy.

Back 14

radioactive isotope

Front 15

The capacity to cause change.

Back 15

energy

Front 16

The energy that matter possesses because of its location or structure.

Back 16

potential energy

Front 17

The rings around an atom that have the electrons in it is called the ___ ___.

Back 17

electron shell

Front 18

The outer most shell is the ___.

Back 18

valence shell

Front 19

The electrons in the valence shell is called ___.

Back 19

valence elcetrons

Front 20

The 3D space where an electron is found 90% of the time is called ____.

Back 20

orbital

Front 21

What are the 4 major biological elements.

Back 21

Nitrogen, Oxygen, Hydrogen, and Carbon.

Front 22

The oxygen binding core of hemoglobin.

Back 22

Iron

Front 23

___ , required for thyroid hormone synthesis.

Back 23

Iodine

Front 24

___ disease, too much copper.

Back 24

Wilson's

Front 25

binding protein in the ___ leads to excess copper in the blood.

Back 25

liver

Front 26

Copper deposits increase to toxic levels in the ___,___,___, and ___.

Back 26

liver, brain, kidney, and cornea of the eye.

Front 27

Untreated, ___ is invariably fatal.

Back 27

WD

Front 28

Atomic mass unit is called___

Back 28

daltons

Front 29

Elements with a full valence shell are chemically ___

Back 29

inert

Front 30

___ bonding between atoms drives form and function.

Back 30

Chemical

Front 31

Sharing of a pair of valence electrons by 2 atoms.

Back 31

Covalent bond

Front 32

___ covalent bond=electrons shared equally by the atoms.

Back 32

Nonpolar

Front 33

___ covalent bond= one atom is more electronegative: it hogs the electron.

Back 33

Polar

Front 34

When the charge is positive it is a ___

Back 34

cation

Front 35

When the charge is negative it is a __

Back 35

anion

Front 36

An ___ bond is an attraction between an anion and a cation.

Back 36

ionic

Front 37

___ formed by ionic bonds are called ionic compounds, or salt.

Back 37

Compounds

Front 38

Atoms with __ __ __ can share or transfer valence electrons with certain othe atoms.

Back 38

incomplete valence shells

Front 39

A covalent bond is very ___

Back 39

strong

Front 40

An ionic bond is ___

Back 40

weaker

Front 41

Notations used to represent atoms and bonding is calle a __ __.
Ex: H-H

Back 41

structural formula

Front 42

When they are abbreviated further like H2.

Back 42

molecular formula