Question

challenge 2
? element name:
? element symbol:
? mass number: 5
? # of protons: 5
? # of neutrons:
? # of electrons:
? charge 0
? ion?
yes (ion)
no (neutral atom)
? stable?
yes
no

Explanation:

Step1: Identify element by proton number

The number of protons determines the element. With 5 protons, it is boron.

Step2: Determine element symbol

The symbol for boron is B.

Step3: Calculate number of neutrons

Mass number = protons + neutrons. So neutrons = mass number - protons = 5 - 5 = 0.

Step4: Determine number of electrons

For a neutral atom, number of electrons = number of protons. So there are 5 electrons.

Step5: Determine ion - neutral status

Since charge is 0, it is a neutral atom (No (Neutral Atom)).

Answer:

Element Name: Boron
Element Symbol: B
Mass Number: 5

of Protons: 5

of Neutrons: 0

of Electrons: 5

Charge: 0
Ion?: No (Neutral Atom)
Stable?: Yes