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WorksheetsATOMS AND IONS
Total questions: 13
Worksheet time: 4mins
When an atom loses electron, it forms a/an ................................
positively charged ion
a negatively charged ion
isotope
Isotopes are atoms of the same element with
same number of proton and neutron but different number of electrons
same number of proton and electrons but different number of neutrons
same number of electrons and neutron but different number of protons
Which of the following is electron configuration for an atom with proton number 9
2,7
2,8
2,9
What is the electron configuration for atom X?
2,4
2,5
7
2,8
What is the proton number of lithium?
3
4
7
Which particles make up the nucleus of an atom?
electron, neutron and proton
electron and neutron
neutron and proton
proton only
A particle has 7 protons, 7 neutrons and 10 electrons. This particle is a/an
atom
ion
isotope
element
An atom has an electron configuration of 2,8,7. What will be the charge of the ion that it will form?
1+
2+
1-
2-
What is the relative charge of a proton?
+1
-1
0
What is the relative charge of a neutron?
+1
-1
0
An atom has an electron configuration of 2,8. Which group does it belong to?
Group I
Group II
Group VIII
An atom has an electron configuration of 2,6. Which period does this atom belong to?
Period 1
Period 2
Period 6
An atom has an electron configuration of 2,4. State the number of valence electrons it has.
2
4
6
