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Worksheets2nd Six Weeks Test
Total questions: 35
Worksheet time: 31mins
Elements are arranged in a certain order in the periodic table, from left to right and top to
bottom. A pattern of repeating physical and chemical properties of the elements emerges. What
is this order of arrangement?
decreasing order of the number of valence electrons in the atoms
alphabetical order of the names of the elements
increasing order of the atomic number of the elements
increasing order of the number of neutrons in the atoms
What subatomic particle is found on the OUTSIDE of the Nucleus?
Negatively Charged particles only
Positively Charged particles only
Neutral Charged particles only
Neutral particles and positively charged particles
which is the odd one out
Be
Li
As
Hs
which is a nonmetal
Rn
Mn
Rb
Os
which is a metal
N
Ge
K
I
which is a metaloid
Kr
Ga
Sb
Ir
Which Bohr model represents Neon?
Which Bohr model represents Be?
Which Bohr model represents Oxygen?
How many electrons does this element have?
12
11
13
10
What is the mass of this atom?
13
14
27
1
What is the mass of this element
19
20
39
1
What are valence electrons?
The total number of electrons in an atom
The number of electrons in the outermost shell
The number of electrons in the second shell
The number of protons in the outermost shell
All atoms are most stable with (or would "prefer") how many electrons in their valence shell?
1
2
8
18
What determines the identity of an atom?
Protons
Neutrons
Electrons
Valence Electrons
How many protons, neutrons, and electrons are present in an atom of hafnium, Hf, with a mass
number of 178?
72 protons, 178 neutrons, 106 electrons
72 protons, 106 neutrons, 72 electrons
178 protons, 250 neutrons, 72 electrons
106 protons, 72 neutrons, 106 electrons
