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Chapter 4-6 Review Flashcards | StudBud
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Chapter 4-6 Review
Chapter 4-6 Review
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1
Which of the following is in the same period as phosphorous?
carbon
nitrogen
oxygen
magnesium
2
The atomic number of an element is the the total number of which particles in the nucleus?
protons and neutrons
neutrons
electrons
protons
3
How does atomic radius change from left to right across a period in the periodic table?
It tends to increase.
It first decreases, the increases.
It first increases, then decreases
It tends to decrease.
4
The nucleus of an atom is:
the central core composed of protons and neutrons
positively charged and always has more protons than neutrons
negatively charged with high density
negatively charged and low density
5
Carbon has three isotopes: Carbon-12, Carbon-13 and carbon-14. Which is the most abundant?
cannot be determined from this information
carbon-14
carbon-13
carbon-12
6
Which experiment led to the discovery that the electron was negatively charged?
Cathode Ray
Democritus
Mendeleev's periodic table
Rutherford's Gold Foil
7
In which of the following sets is the symbol of the element and the numbers given correctly?
In, 49 protons, 49 electrons
F, 19 protons, 19 electrons
Cs, 55 protons, 132.9 electrons
Zn, 30 protons, 60 electrons
8
Which of the following categories includes the majority of the elements?
metals
metalloids
nonmetals
liquids
9
What element in the second period has the largest atomic radius?
neon
potassium
lithium
carbon
10
Which of the following has the lowest electronegativity?
bromine
carbon
lithium
fluorine
11
Isotopes of the same element have different:
mass numbers
positions on the table
chemical behavior
atomic numbers
12
Dalton's atomic theory included which idea?
Atoms of the same element are always identical.
Individual atoms can be seen with a microscope.
All atoms of all elements are the same size.
Atoms of different elements always combine in 1 to 1 ratios.
13
Which of the following elements has the smallest atomic radius?
chlorine
selenium
sulfur
bromine
14
Which experiment led to the discovery of the atomic nucleus?
Rutherford's Gold Foil
Cathode Ray
Mendeev's periodic table
Mendel's Pea plants
15
Which of these elements is a transition metal?
fluorine
copper
lithium
cesium
16
What is the element with the highest electronegativity value?
fluorine
helium
calcium
cesium
17
What are the Group 1A and Group 7A elements examples of?
transition elements
nonmetallic elements
representative elements
noble gases
18
Who was the man that first suggested the idea of atoms?
Atomos
Democritus
Thomson
Dalton
19
How is the number of neutrons in the nucleus of an atom calculated?
subtract the number of electrons from the number of protons
subtract the number of protons from the mass number
add the number of protons and neutrons together
add the mass number to the number of electrons
20
Which of the following statements is true about ions?
Anions form when an atom loses protons.
Cations form when an atom gains electrons.
Anions form when an atom gains protons.
Cations form when an atom loses electrons.
21
Isotopes of the same element have different:
numbers of electrons
numbers of protons
numbers of neutrons
atomic numbers
22
The metals in groups 1A, 2A and 3A:
all form ions with negative charges
Lose electrons when they form ions
all have ions with a +1 charge
gain electrons when they form ions
23
Which particle plays the greatest part in determining the properties of an element?
electron
none of these
neutron
proton
24
What does the number 84 in the name krypton-84 represent?
the number of electrons
the mass number
the sum of protons and electrons
the atomic number
