Font size
WorksheetsElements and Atoms
Total questions: 17
Worksheet time: 26mins
What is an atom?
The smallest particle of an element or compound that normally exists on it's own and still retains it's own properties.
The smallest particle of an element that retains the chemical properties of that element.
The region of space in which the electrons move around the nucleus of an atom.
A group of eight electrons in a single electron shell except the innermost orbital.
Write the atomic number, element symbol, and element name for Hydrogen.
In the order listed above, and use "-" to separate each part
(a)
What is the structure of an atom according to modern atomic theory?
Rutherford-Bohr
Electron Cloud/Orbital
Write the atomic number, element symbol, and element name for Helium.
In the order listed above, and use "-" to separate each part
(a)
What are the subatomic particles that make up an atom and what are their charges?
Proton - Positive
Electron - Negative
Neutron - None
Orbital - Positive
Shell - Negative
Nucleus - None
Octets - Positive
Ions - Negative
Isotope - None
Write the atomic number, element symbol, and element name for Lithium.
In the order listed above, and use "-" to separate each part
(a)
What are the subatomic particles that make up an atom and what are their charges?
Proton - Positive
Electron - Negative
Neutron - None
Orbital - Positive
Shell - Negative
Nucleus - None
Octets - Positive
Ions - Negative
Isotope - None
What is an electron shell?
The smallest particle of an element or compound that normally exists on it's own and still retains it's own properties.
The smallest particle of an element that retains the chemical properties of that element.
The region of space around a nucleus around which the electrons move around the nucleus of an atom.
A group of eight electrons in a single electron shell except the innermost orbital.
Write the atomic number, element symbol, and element name for Beryllium.
In the order listed above, and use "-" to separate each part
(a)
Vocab! In YOUR own words
An element is...
Vocab! In YOUR own words
A compound is...
What is an octet and why is it important in chemistry?
Vocab! In YOUR own words
An ion is...
Vocab! In YOUR own words
An isotope is...
What is the difference between the atomic and mass numbers?
Choose the Law of conservation of mass
Matter can neither be created nor destroyed during a chemical reation.
All pure samples of the same chemical compound contain the same elements combined in the same proportions by mass.
If two elements, A and B, can combine to form more than one compound, then the different masses of A which combine with a fixed mass of B in each compound are in a simple ratio.
Choose the Law of conservation of mass
Matter can neither be created nor destroyed during a chemical reation.
All pure samples of the same chemical compound contain the same elements combined in the same proportions by mass.
If two elements, A and B, can combine to form more than one compound, then the different masses of A which combine with a fixed mass of B in each compound are in a simple ratio.
