Atomic Structure
This is the smallest particle of an element that retains the properties of that element.
What is an atom?
This particle has a positive charge.
What is a proton?
Isotopes are atoms of the same element with different numbers of these particles.
What are neutrons?
Horizontal rows are called these.
What are periods?
Electrons are arranged in these.
What are shells/energy levels?
The centre of an atom is called this.
What is the nucleus?
This particle has no charge.
What is a neutron?
Carbon-12 and Carbon-14 are examples of this.
What are isotopes?
Vertical columns are called these.
What are groups?
The electron configuration of Lithium is this.
What is 2,1?
This number equals the number of protons in an atom.
What is the atomic number?
This particle moves around the nucleus.
What is an Electron?
Isotopes have the same number of these particles.
What are protons?
Elements in the same group have similar
What are chemical properties?
The electron configuration of Oxygen is this.
What is 2,6?
Most of the mass of an atom is found here.
What is the nucleus?
Which sub-atomic particle determines the identity of an element?
What is the proton?
Chlorine-35 and Chlorine-37 differ by this number of neutrons.
What is 2?
Most metals are located on this side of the periodic table.
What is the left side?
An atom with 2,8,1 belongs to which group?
What is Group 1?
Explains why atoms are electrically neutral.
What is the number of protons equals the number of electrons?
An atom has 17 protons, 18 neutrons and 17 electrons. What is its mass number?
What is 35?
Explain why isotopes have similar chemical properties.
What is they have the same electron arrangement/number of electrons?
Name the three broad classifications of elements.
What are metals, non-metals and metalloids?
Write the electron configuration for Calcium (20 electrons).
What is 2,8,8,2?