A proton is located in :
the nucleus
has relative charge +1
has relative mass 1
A neutron is located in :
the nucleus
has neutral relative charge
has relative mass 1
An electron is located in :
an energy level
has relative charge −1
has relative mass 1/1,840
📌 An atom is neutral because it contains equal numbers of positively charged protons and negatively charged electrons.
The nucleus holds massive protons and neutrons, whereas the energy levels hold tiny electrons.
1. Regarding protons, which of the following statements are correct?
2. The characteristics of electrons include:
3. Concerning atomic number, select the correct statement or statements:
What is an atom in terms of element properties?
The smallest part of an element that retains its properties.
Why is an atom electrically neutral?
Because it has equal numbers of protons and electrons.
What is the atomic number of an element?
The number of protons in its nucleus.
How do you calculate the number of neutrons in an atom?
Subtract the atomic number from the mass number.
Atom: smallest particle of an element
Maintains the element's properties
Proton location and charge
Nucleus, +1 charge
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