Chapter 2 Flashcards
In a chemical reaction, matter is neither created nor destroyed. Which law does this refer to?
Identify the equipment that Thomson utilized to do his research.
The mass number is equal to
Determine the number of protons, neutrons, and electrons in the following:
25
X
12
What species is represented by the following information?
p+ = 47 n° = 62 e- = 46
Which of the following does NOT describe a nonmetal?
The atomic mass for cadmium is
Silver has an atomic mass of 107.868 amu. The Ag-109 isotope (108.905 amu) is 48.16%. What is the amu of the other isotope?
Identify the discovery that Millikan made
How many electrons does the Br- ion possess?
How many electrons does the N3- ion possess?
How many electrons does the P3- ion possess?
How many electrons does the Al3+ ion possess?
Predict the charge of the most stable ion of sodium
Which of the following elements is a halogen?
Which of the following elements is a nonmetal?
Which of the following elements is an alkaline earth metal?
Which of the following elements is a transition metal?
Sodium belongs to the ________ group of the periodic table
Which of the following elements is a good conductor of heat and electricity?
Which one of the following elements is a poor conductor of heat and electricity?
All of the following elements are nonmetals EXCEPT
Predict the charge of the most stable ion of potassium
Which of the following elements is a halogen?
Which of the following elements is a nonmetal?
Which of the following elements is an alkaline earth metal?
Which of the following elements is a transition metal?
Sodium belongs to the ________ group of the periodic table
Predict the charge of the most stable ion of rubidium
Which of the following elements is a halogen?
Which of the following elements is a nonmetal?
Predict the charge of the most stable ion of sodium
Identify the discovery that Thomson made
Identify the charges of the protons, neutrons, and electrons
An atom of 13C contains ________ protons
How many electrons are in each neutral atom of magnesium?
Isotopes differ in the number of
Identify a cation
Identify an anion
How many electrons does the Se2- ion possess?
Calculate the atomic mass of element “X”, if it has 2 naturally occurring isotopes with the following masses and natural abundances
What mass (in mg) does 2.63 moles of nickel have?
How many iron atoms are contained in 354 g of iron?
Calculate the atomic mass of gallium if gallium has 2 naturally occurring isotopes with the
following masses and natural abundances
Semiconductors are
Identify the equipment that Millikan utilized to do his research
Identify the description of an atom
Identify the largest subatomic particle
Identify the smallest subatomic particle
All samples of a given compound, regardless of their source or how they were prepared, have the same proportions of their constituent elements. Which law does this refer to?
When two elements form two different compounds, the masses of element B that combine with 1 g of element A can be expressed as a ratio of small whole numbers. Which law does this refer to?
Which of the following is an example of the law of multiple proportions?
