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WorksheetsHow do you know? Atomic structure and periodic table
Total questions: 43
Worksheet time: 32mins
How do you know how many valence electrons an element has?
Find in which period the element is located
Find in which group the element is located
A group goes from _____ to _______.
Top to bottom
Left to right
On your periodic table you can find information in this format. Which number is the atomic number for Copper?
63.546
29
Draw the correct number of orbitals for Phosphorus (P).
Carbon and Silicon both have (a) of valence electrons.
Which element is a non-metal?
Calcium (Ca)
Hydrogen (H)
Magnesium (Mg)
Germanium (Ge)
What is the charge of a proton?
positive
negative
no charge
What is the charge of a neutron?
Positive
negative
no charge
What is the charge of an electron?
positive
negative
no charge
What is the charge of a proton, neutron, and electron respectively?
+1, 0, -1
0, +1, -1
-1, +1, 0
Which two words mean neutral or no charge?
Atom
Ion
Element
What does inert mean?
It reacts very fast
It does not react
It makes bonds
What does brittle mean?
It breaks easy
It is very strong
It is very reactive
What does dull mean?
It shines, sparkles
It has no shine, opaque
What is the meaning of ductile?
It can be shaped into thin sheets
It can be shaped into wires
It cannot be shaped into anything
Malleable mean a metal _____ be hammered into thin sheets.
can
cannot
Which element cannot be molded into sheets or wires?
Carbon (C)
Copper (Cu)
Gold (Au)
Aluminium (Al)
To what group does Magnesium belong to?
Group 2A and alkali metals
Group 2A and alkaline earth metals
Group 3 and alkaline earth metals
To what group does Carbon, C, belong to? (two answers)
2
4A
14
4B
Which type of elements can conduct electricity? (two answers)
Elements found on the left side of the periodic table, called metals
Elements found on the right side of the periodic table, called non mentals.
Elements in between metals and nonmetals, found in the staircase. These are called metalloids
Which element is an inert gas?
Hydrogen, H
Neon, Ne
Carbon, C
Silicon, Si
Which type of element can be found as a liquid, gas, and solid state of matter?
Metals
Metalloids
Non-metals
Which image shows the correct number of protons (p), neutrons (n), and electrons (dots) for a neutral atom of nitrogen.
A
B
C
Which two sets of elements have the same number of valence electrons?
Carbon (C) and Oxygen (O)
Magnesium (Mg) and Strontium (Sr)
Lithium (Li) and Magnesium (Mg)
Hydrogen (H) and Lithium (Li)
What is the atomic symbol of this element?
29
Cu
Copper
If you round the mass up, how many neutrons can be found in copper?
29
35
64
If an atom has more protons than electrons, is the atom neutral?
Yes, it is neutral
no, it has more positive subatomic particles. the charge is positive
no, it has more positive subatomic particles. the charge is negative
If an atom has more electrons than protons, it is negatively charge?
Yes, there is more negative subatomic particles than positive ones.
no, there are more positive subatomic particles than negative ones.
No, it is neutral.
What is the charge of an atom that has lost three electrons?
3+
3-
What is the charge of an atom that has gained two electrons?
2+
2-
Which statement is correct and why?
Nitrogen is bigger boron because it has the more protons.
Silicon is bigger than Phosphorus because it is in group 14.
Aluminium is bigger than Boron because it has more electron shells.
Which two of the following lists correctly places the elements from smallest radius to largest radius?
Ga < Si < N
F < O < Si
O < P < Ge
Al < B < C
A period goes from _____ to ______. It represent energy levels, or orbitals.
left to right
top to bottom
Which two sets of elements have the same number of orbitals? (two answers)
Boron (B) and Nitrogen (N)
Nitrogen (N) and Sulfur (S)
Neon (Ne) and Argon (Ar)
Chlorine (Cl) and Sulfur (S)
Which Bohr's diagram correctly represents a Fluorine atom.
A
B
C
A student drew this Bohr's diagram for an atom of Neon. What is wrong with it?
Nothing
the neutrons and protons do not add to the atomic mass of neon
there are electrons on the third orbital. Neon has all its electrons on the first two only.
There are too many electrons
How many orbitals and valence electrons are there in Magnesium?
Two orbitals and three valence electrons
three orbitals and two valence electrons
three orbitals and 12 valence electrons
The diagrams shows
two different elements
two isotopes of the same element, they have different mass
two ions of the same element, they have different charge
How many orbitals and valence electrons are there in Potassium?
One orbital and four valence electrons
four orbitals and one valence electrons
four orbitals and 19 valence electrons
The diagram shows
isotopes of nitrogen only
ions of nitrogen only
both isotopes and ions of nitrogen
The diagram shows
isotopes of Aluminium only
ions of Aluminium only
both isotopes and ions of Aluminium
Which element has the same number of orbitals as Chlorine (Cl)?
Lithium (Li)
Fluorine (F)
Aluminium (Al)
Calcium (Ca)
Which group likes to lose 2 electrons and have a charge of 2+?
Alkali Metals (Group 1)
Alkaline Earth Metals (Group 2)
Nonmetals in Group 6A or 16
