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WorksheetsAtomic structure/periodic table
Total questions: 20
Worksheet time: 9mins
What do the columns of the Periodic Table show?
The number of shells in the element
The number of electrons in the outer shells
The reactivity of the element
The atomic number
Nitrogen has a(n) ___ of 7 and a(n) ___ of 14
Atomic number, relative atomic mass
Period , atomic number
Relative atomic mass, atomic number
Group, atomic number
Why do some elements have rounded atomic numbers?
They have isotopes
They have isomers
The nucleus of an element is surrounded by ___
Protons
Neutrons
Electrons
Particles
What do the rows of the perodic table show?
The number of outer shells in the element
The number of outer shells containing an electron in an element
The number of electrons in the outer shell
The total number of electrons present
80% of Boron is Boron-11 and 20% of Boron is Boron-10. Calculate the relative atomic mass of Boron to one dp.
17.1
10.2
10.8
11
the mass of an electron is —, a proton has a mass of —, and a neutron has a mass of —
2000,1,1
-1,+1,0
1/1000, 1, 1
1,2000,2000
the higher the period number, the — electrons there are
Fewer
More
The charge of an elements ion depends on its —
Group number
Period number
one group where the charge is not dependent on a group number is the —
Halogens
Earth metals
Transition metals
Noble gases
The most stable elements are found in group — and they are called the —
0, noble gases
noble gases, 8
0, halogens
alkali earth metals, 8
The ninth element in the periodic table is —
Beryllium
Fluoride
Neon
Fluorine
If zinc were to lose a proton it would become
Copper
Gallium
Aluminium
If tungsten were to gain three neutrons it would become
Lutetium
Iridium
Lanthanum
Tungsten
What are the two elements which are liquid at room temperature
Mercury, Bromine
Iodine, sodium
Selenium, manganese
Name three elements in the periodic table which are gases (select two lists)
Oxygen, krypton, chlorine
Bromine,oxygen, nitrogen
Radon, helium, hydrogen
Fluoride, chloride,bromide
How many neutrons does phosphorus have?
15
16
31
47
What is the symbol for the 56th element?
Fe
Ba
ba
fe
Is carbon a metal?
Yes
No
Is magnesium an alkali metal?
No
Yes
