An extract of the Periodic Table shows trends across periods and down groups.
In the Periodic Table, which number increases from 3 to 10 in Period 2?
In the Periodic Table, which value increases from approximately 9 to 226 in Group 2?
An atom of nitrogen contains protons, neutrons, and electrons.
Use words from the box below to complete the sentences. You may use each word once, more than once, or not at all.
protonsneutronselectrons \text{protons} \quad \text{neutrons} \quad \text{electrons} protonsneutronselectronsThe particles with a relative mass of almost zero are ____________.
The particles with no electrical charge are ____________.
The two types of particle located within the nucleus of a nitrogen atom are ____________ and ____________.
A neutral nitrogen atom contains equal numbers of ____________ and ____________.
Isotopes of nitrogen have the same atomic number but different numbers of ____________.
