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WorksheetsAtomic structure week 1 - remote learning
Total questions: 20
Worksheet time: 10mins
What are the sub atomic particles found in the nucleus of an atom? (Tick all correct boxes - Hint there are 2)
Proton
Neutron
Electron
Positron
Which particle has a negative charge?
Electron
Proton
Neutron
What does the atomic number (smaller number) next to an element on the periodic table tell us?
The number of protons found in the nucleus
The number of electrons found in the nucleus
The number of neutrons found in the nucleus
The total number of protons + neutrons
An atom of Nitrogen has 7 protons in it's nucleus. How many electrons would an atom of nitrogen have?
7
14
3
3.5
What is the maximum number of electrons you can find in the first electron shell? (the one closest to the nucleus)
2
8
0
What do we call the central part of an atom where you find protons and neutrons?
Nucleus
Electron shell
Proton
Neutron
Look at the chemical symbol of silver (Ag) how many protons would you find in the nucleus?
47
108
51
94
Look at the chemical symbol for silver (Ag) how many neutrons would you find in the nucleus of 1 atom?
51
47
108
Look at the chemical symbol for silver (Ag) how many electrons would you find in 1 atom of silver?
47
108
51
94
The number of protons in an atom will be equal to the number of ____________ ?
electrons
neutrons
nucleus
electron shells
Which idea did Democritus come up with in 500BC to explain what matter is made from?
Atomic theory (atomos)
Nuclear theory
Plum pudding model
Bohr model
JJ Thompsons Plum pudding model of the atom suggested that there must be what?
negatively charged spheres
A nucleus
Neutrons
Ernest Rutherford and his student found what?
The nucleus was small and positively charged
The electrons were everywhere
The positive charge was spread out
What did Niels Bohr suggest?
The electrons orbit the nucleus
The electrons are in the nucleus
There are no electrons
James Chadwick suggested the existence of what particles found in the nucleus?
Neutrons
Protons
Electrons
Cells
How are elements arranged in the periodic table?
In order of increasing atomic number
In order of decreasing atomic number
In order of how many neutrons they have
In alphabetical order
What is the electronic configuration of oxygen?
2.6
2.4
2.8.6
8
What is the electronic configuration of Argon (Ar)?
2.8.8
2.8
18
2.18
What do we call the rows on the periodic table?
periods
groups
levels
electron shells
What do we call the columns on the periodic table?
groups
periods
electron shells
levels
