AP Chem Unit 1: Atomic Structure and Particles
Studied by 0 people
Knowt Play
Learn
Practice Test
Spaced Repetition
Match
Flashcards1/27
Earn XP
Name | Mastery | Learn | Test | Matching | Spaced |
|---|
No study sessions yet.
28 Terms
What is the atomic number of zinc?
30
What is the atomic symbol for zinc?
Zn
What is the average atomic mass of zinc?
65.38g
How many protons does zinc have?
30
How many neutrons does Zn-65 have?
35
How many electrons does a neutrally-charged atom of zinc have?
30
The number of protons in an element is equal to its ____
atomic number
The number of electrons in a neutrally-charged element is equal to ____
the number of protons
The number of neutrons in an element is equal to ____
mass number - number of protons
Gases are at standard temperature and pressure when pressure is ___atm and temperature is ____K
1, 273
When a gas is at STP, one mole of gas always occupies ___L
22.4
The number of protons in Cl-35 is ___
17
The number of neutrons in Cl-35 is ____
18
The atomic number of Cl-35 is ___
17
The mass number of Cl-35 is ___
35
The number of protons in C-12 is ___
6
The number of neutrons in C-12 is ____
6
The atomic number of C-12 is ___
6
The mass number of C-12 is ___
12
According to the graph, what is the most abundant isotope of magnesium?
Mg-24
Ions collide with a metal plate. Electrons are transferred from the metal to the ion, producing a current and thus a signal to a computer.
Detection
Ions are attracted to the negative side of an electromagnetic field causing separating of the mixture based on mass and charge.
Deflection
Electrons are knocked off sample particles to form (mostly) +1 ions.
Ionization
Ions move through a series of charged plates to form a narrow beam of high speed particles with equal kinetic energy.
Acceleration
If the average atomic mass of hydrogen in nature is 1.0070, which isotope must have a higher percent composition in nature?
H-1
If the average atomic mass of boron in nature is 10.81 amu, which isotope must have a higher percent composition in nature?
B-11
Isotopes of the same element have different numbers of ___
Neutrons
Which of the following elements has the mass spectrum represented above?