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Unit 3: Atomic Structure Review Flashcards | StudBud

Explore/Unit 3: Atomic Structure Review

Unit 3: Atomic Structure Review

9 terms·StudBud Administration·108 plays

review of atoms

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Questions 9

Answers

1
How many different elements are represented in the table below?
1
4
3
2
2
Which part of the atom is responsible for the mass of the atom?
the positive nucleus
mass is distributed equally
the neutral nucleus
the electron "cloud"
3
Which part of the atom is responsible for the volume of the atom?
protons and neutrons in nucleus
volume is equally distributed
neutral "cloud"
electron "cloud"
4
Describe the current atomic theory.
a positive nucleus with electrons in a cloud around it
negative nucleus with protons orbiting
none of the other choices are correct
a neutral nucleus with electrons in orbits around it
5
What is the difference between Hydrogen-2 and Hydrogen-1?
There is no difference between them
Hydrogen-2 has one more proton
Hydrogen-2 has 1 more neutron
Hydrogen-2 has 1 more electron
6
Which is the most accurate description of an atom?
protons and electrons in nucleus; #protons = #electrons
protons and electrons in nucleus; #protons = #neutrons
protons and neutrons in nucleus, #protons = #electrons
protons and neutrons in nucleus, #protons = #neutrons
7
Below is Dalton's Atomic Theory, the discovery of isotopes made which of Dalton's rules false?
4
2
3
1
8
The number 84 in Krypton-84 represents what?
mass number
average atomic mass
atomic number
electron number
9
What would remain if you took all the atoms out of a chair?
protons, neutron, electrons
dust
space
nothing