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WorksheetsParticles in the atom and Isotopes
Total questions: 20
Worksheet time: 26mins
Who introduced the term of atom for the first time
Democritus
Dalton
Thomson
Rutherford
Niels Bohr
Which statement about atom is correct?
Atoms contain proton and electron in the nucleus
Protons are negatively charged
Neutrons are negatively charged
Location electron in the atom is in the nucleus
Mass atom equal with the number of proton and neutron
What is mass number from Carbon?
6
12
16
8
10
What is the number of electron from sulfur?
16
14
12
18
32
Which one is bigger radius between Mg and Mg2+ ?
Mg
Mg2+
Which one is bigger radius between Mg2+ and Al3+ ?
Mg2+
Al3+
Which one is bigger radius between S and S2- ?
S
S2-
Which subatomic particle has no charge?
Proton
Neutron
Electron
What is an atom’s nucleus made of?
(a)
Why mass number of an atom just consist of protons and neutrons, not included electrons?
Atoms of different isotopes of the same element differ in their total number of...
electron
proton
neutron
Which isotopes are radioactive?
Carbon-12
Carbon-13
Carbon-14
How many neutrons does U238 have?
235
238
92
143
146
What is an isotope?
a nucleus with the same number of protons but different number of electrons
a nucleus with the same number of protons but different number of neutrons
a nucleus with the same number of protons but different number of protons
The relative atomic mass of an element is..
the mass of its most abundance isotopes
the mass of pure isotopes
cannot be calculated
How do the isotopes of hydrogen-1 and hydrogen-2 differ?
Hydrogen-2 has one more electron than hydrogen-1
Hydrogen-2 has two protons; hydrogen-1 has one.
Hydrogen-2 has one neutron, hydrogen-1 has none.
Hydrogen-2 has one proton; hydrogen-1 has none.
Which Statements about the isotopes of chlorine are correct?
They have the same chemical properties
They have the same physical properties
The isotopes of Hydrogen-1 and Hydrogen-2 (Deuterium-2) can form water (H2O) and heavy water (D2O). Which statemens are correct both H2O and D2O ?
D2O have bigger density than H2O
H2O have bigger density than D2O
How many isotopes does Ziroconium have?
3
4
5
6
7
How much atomic mass from Titanium?
(a)
