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WorksheetsAtomic Structure Review
Total questions: 17
Worksheet time: 9mins
Which of the following statements are correct?
Atoms in the same group have similar properties
Atoms are mostly empty space
Atoms of isotopes of an element have different number of protons
The nucleus of an atom has a positive charge
The particles that are found in the nucleus of an atom are
neutrons and electrons
protons and electrons
electrons only
protons and neutrons
What is the charge of the nucleus?
Positive
Negative
Neutral
All atoms are
positively charged, with the number of protons exceeding the number of electrons
negatively charged, with the number of electrons exceeding the number or protons
neutral, with the number of protons equaling the number of electrons
neutral, with the number of protons equaling the number of electrons, which is equal to the number or neutrons
Which best describes an electron
The electron is positively charged and orbits the nucleus
The electron is negatively charged and orbits the nucleus
The electron is positively charged and is in the nucleus
The electron is negatively charged and is in the nucleus
Which best describes a neutron?
The neutron is negatively charged and is part of the nucleus
The neutron is positively charged and orbits the nucleus
The neutron is neutrally charged and orbits the nucleus
The neutron is neutrally charged and is part of the nucleus
Which best describes a proton?
The proton is positively charged and is part of the nucleus
The proton is positively charged and orbits the nucleus
The proton is negatively charged and is part of the nucleus
The proton is negatively charged and orbits the nucleus
Where is the mass of the atom located?
In the protons
In the neutrons
In the electrons
In the nucleus
The atomic number of an element is the total number of which subatomic particles in the nucleus?
Protons and electrons
Electrons
Protons
Neutrons
The mass number of an element is equal to
the total number of electrons in the nucleus
less than twice the atomic number
a constant number for the lighter elements
The total number of protons and neutrons
His model of the atom showed negative electrons in a positively charged material.
Bohr
Rutherford
Dalton
Thomson
The subatomic particle that has a positive charge was proven to exist by this scientist.
Dalton
Thomson
Rutherford
Bohr
Which person is known for starting the modern atomic theory?
Dalton
Thomson
Rutherford
Schrodinger
Which of the following was originally an idea of Dalton's Atomic Theory, but later proved incorrect?
Atoms of different elements can combine with one another in simple whole number ratios
Atoms of the same element are not identical
Compounds are made by combining atoms
Atoms can't be divided
Who was the first person to suggest the idea of atoms?
Atomos
Democritus
Dalton
Thomson
He proposed the electron cloud, the probability of where electrons will be located
Schrodinger
Rutherford
Thomson
Bohr
He proposed that the electrons were arranged in certain energy levels.
Thomson
Rutherford
Bohr
Schrodinger
