Chemical Basis of Life
... Title: The Chemical Basis of Life
1- Introduction: Your body is an elaborate chemical system. Chemical reactions
power all of the body’s activities. At the most basic level, life is about
chemicals and how they interact with each other.
2- Matter – Matter is anything that has mass and occupies space ...
... – To have a convenient way to compare the masses
of atoms, scientists chose one isotope to serve as
– An atomic mass unit (amu) is defined as one
twelfth the mass of a carbon-12 atom
... 15. __________ He used the term “atomos” to describe an indivisible part at the base of all matter.
16. __________ He is the Father of the Atomic Theory.
17. __________ He designed a mathematical equation for the model of the atom.
18. __________ He determined the charge of the electron.
19. _______ ...
Chapter 14 Review
... 6. Which part of the atom dictates its chemical properties?
Ions and isotopes
... • In any element, the # of protons is always
• the # of electrons and neutrons can change
in an element without changing the identity
of the element.
CHEMISTRY TERMS Period: Elements in the same horizontal row
... Period: Elements in the same horizontal row with the same ground
state energy level.
Periodic Law: Elements list in order of their atomic numbers that fall
into reoccurring groups.
Ionic Radius: the radius of an atom’s ion, measured by the distance
between ions in a crystal lattice.
Atomic Radius: o ...
WHAT YOU NEED TO KNOW Electron Configurations Explain the
... Explain the relationship between energy levels and sublevels and atomic
Describe the shapes of the s & p orbitals.
Recall the reason for the x, y, z, axes.
Apply the Pauli exclusion principle, the aufbau principle, and Hund’s rule to
write electron configurations using orbital diag ...
Atom Structure and Isotopes
... Videoclip #2 Questions
1) What is the atomic number?
number of protons in the nucleus
2) What are isotopes?
Atoms with the same number of protons,
but a DIFFERENT number of neutrons.
3) How many protons and neutrons are in
the following carbon isotopes?
... particle called an ion.
When an atom loses an electron it has more protons therefore
becoming positively charged. When an atom gains an electron it has
more electrons therefore becoming negatively charged.
Atomic Crossword Name: Period: ____
... 4. The smallest element
7. Particle with no charge
8. Greek thinker who first coined the term "atomos"
11. A _____________ electron is in the outermost shell of an atom
12. Formed when atoms share electrons
14. Has a different number of neutrons than normal
15. The splitting of an atomic nucleus (us ...
Notes: Nuclear Fusion Basics
... • in the core of a star, temperatures reach
• this causes the hydrogen atoms to move VERY fast
... changing isotope ratios, because heavier isotopes are more difficult to move than
lighter ones. Such isotope changes are called mass-dependent fractionation. The
large isotope fractionation takes place between two isotopes with a large mass
difference. In the case of oxygen, the fractionation in (18 ...
Summative Assessment Study Guide Name: Due date: SPS1
... Summative Assessment Study Guide
Name: __________________________________Due date: _____________________
SPS1. Students will investigate our current understanding of the atom.
a. Examine the structure of the atom in terms of
Chapter 18 Notes
... Dimitri Mendeleev (18341907) organized information
about all the known
elements in a table that
visually organized the
similarities between them.
Mendeleev placed each
element on the table in a
certain row and column
based on its properties.
Homework Geochem Test Review
... 12. What part of an atom is negative? _________ What part is positive? _________
What part is neutral? ___________
13. What is the atomic mass? Why don’t we count the electrons when determining the
Fall Final Exam Review Questions
... 41. What are properties of metals and where are they generally located on a periodic table?
42. What are properties of nonmetals and where are they generally located?
43. What are properties of metalloids and where are they generally located?
44. Make sure you know the major groups/chemical families ...
Chemistry Study Guide - Atomic structure and the Periodic Table 2010
... 3. Each of the more than 100 elements of matter has distinct properties and a distinct atomic structure. All
forms of matter are composed of one or more of the elements. As a basis for understanding this concept:
a. What is the structure of the atom and how are protons, neutrons, and electrons arran ...
Livermorium is a synthetic superheavy element with symbol Lv and atomic number 116. It is an extremely radioactive element that has only been created in the laboratory and has not been observed in nature. The element is named after the Lawrence Livermore National Laboratory in the United States, which collaborated with the Joint Institute for Nuclear Research in Dubna, Russia to discover livermorium in 2000. The name of the laboratory honors the city of Livermore, California where it is located, which in turn was named after the rancher and landowner Robert Livermore. The name was adopted by IUPAC on May 30, 2012. Four isotopes of livermorium are known, with mass numbers between 290 and 293 inclusive; the longest-lived among them is livermorium-293 with a half-life of about 60 milliseconds.In the periodic table, it is a p-block transactinide element. It is a member of the 7th period and is placed in group 16 as the heaviest chalcogen, although it has not been confirmed to behave as the heavier homologue to the chalcogen polonium. Livermorium is calculated to have some similar properties to its lighter homologues (oxygen, sulfur, selenium, tellurium, and polonium), although it should also show several major differences from them.