Chapter 1 & 2 Flashcards
How many millimeters (mm) are in 1 meter?
1,000 (One Thousand)
What charge is formed by Phosphorus when it becomes an ion?
-3 (Negative Three)
Name the Alkaline Earth Metals - There are 6
Be (Beryllium) - Sr (Strontium) - Ca (Calcium) - Ba (Barium) - Mg (Magnesium) - Ra (Radium)
What are the S.I. (International Standard) Units for density?
Kg/m^3
On the Periodic Table of the Elements the group containing He, Ne, Ar, Kr, Ze, & Rn is called
Noble Gases
Solve this problem in scientific notation:
(7.25 x 10^-4) / (5.4 x 10^7)
1.3 * 10^ -11
In the nuclear model of an atom, which subatomic particle(s) is/are found in the nucleus?
Protons & Neutrons
What is the atomic number for Platinum?
78
Solve this problem in scientific notation:
(2.7 * 10^5) * (6.1 * 10^2)
1.647 * 10^8
How many neutrons are in Carbon-13?
7
Name a main group metal
Ca (Calcium) - many others (look at periodic table)
Name a metalloid element
Silicon (many others, look at periodic table)
Which element does NOT form ions?
Krypton
Define Chemistry
The science that seeks to understand what matter does by studying what atoms and molecules do.
Which element will GAIN electrons when forming ions?
Bromine
