Fill in the blank Flashcards
Express 1870000 in scientific notation
1.87 x 10 to 6
Write 8319 in standard scientific notation
8.319 x 10 to 3
The number 0.00003007 expressed in exponential notation is
3.007 x 10 to -5
The number 0.00231 expressed in exponential notation is
2.31 x 10 to -3
One kilogram contains ______ grams
1000
How many milliliters are in 0.020 L
20 mL
1 mm contains _____km
1.0 x 10 to -6
12.4 L contains _______mL
12,400 mL
The fundamental unit of length in the metric system is the ____
meter
The number of milligrams in 1 kg is ________
1.0 x 10 to 6
The SI prefix that corresponds to a factor of 10 to -3 is _____
milli
The number of cubic centimeters in 43.0 mL is _____
43.0
How many significant figures are in the number 6.022 x 10 to 23
4
How many significant figures in the number 103.045
6
The number 2763 rounded to 3 significant figures becomes ______
2760
_____ is the most abundant element on earth (including the crust, oceans, and atmosphere).
Oxygen
The symbol for chlorine is ______
Cl
The symbol for potassium is ______
K
The symbol for cobalt is ______
Co
The symbol for mercury is _______
Hg
The symbol C stand for ______
Carbon
The symbol Ag stands for ________
Silver
The symbol Au stands for ________
Gold
The symbol S stands for ________
Sulfur
The symbol Ba stands for ________
Barium
The symbol for calcium is _______
Ca
The symbol for lead is ________
Pb
Which atomic particle determines the chemical behavior of an atom?
electron
List the three main subatomic particles
protons, neutrons and electrons
What particle has the smallest mass
electron
How many protons, electrons and neutrons does 16Oxygen have?
8, 8, 8
Atoms of the same element having the same atomic number but different mass numbers are called ______
neutrons
The number of protons in the nucleus of an atom is called its ________
atomic numbers
The correct name for LiCl is _________
lithium chloride
The charge on a potassium ion in its ionic compounds is _____
+1
The correct name for the Ca2+ species is_______
calcium ion
The correct name for P2O5 is _______
Diphosphorus Pentaoxide
CO is the formula for __________
Carbon Monoxide
As the principal energy level increases in an atom’s orbitals, the average distance of an electron energy level from the nucleus __________
increases
A given set of f orbitals consists of ______ orbitals
7
The maximum number of electrons allowed in each of the p orbitals is ______
2
A given set of d orbitals consists of ________ orbitals
5
The maximum number of electrons allowed in each of the d orbitals is ______
2
The maximum electron capacity of an f sublevel is _______
14
A d sublevel can hold a maximum of _______ electrons
10
The maximum number of electrons allowed in the p sublevel of the third principal level is ______
6
The electron configuration for the oxygen atom is _____
1S2 2S2 2P4
The alkaline earth metals have how many valance electrons?
2
The noble gases contain how many valance electrons?
8
Write the electron configuration for B
1S2 2S2 2P1
Metal atoms tend to _____ electrons and form ______ ions
lose, positive
Chemical bonds formed by the attraction of oppositely charged ions are called _____
ionic
When a molecule has a center of positive charge and a center of negative charge it is said to have a ______
dipole
Nonmetal elements typically have ______ electronegativities
high
Write the electron configuration for Al3+
1S2 2S2 2P6
When electrons are shared unequally chemists characterize these types of bonds as _________
polar covalent
When a metal and a nonmetal react, the metal ______ electrons and the nonmetal _______ electrons.
loses, gains
At constant pressure the volume of a gas sample is______ proportional to its ________ temperature.
directly, Kelvin
