Question

1. find the following elements symbols: oxygen_ iron_ potassium_ nitrogen_ carbon_ tin_ hydrogen_ calcium_ chlorine_ gold_ silver_ neon_ sodium_ copper_ arsenic_ krypton_ niobium_ antimony_ polonium_ helium_ livermorium_ flerovium_ copernicium_ darmstadtium_

Explanation:

Step1: Recall element symbols

We use the standard - known element symbols from the periodic table.

Answer:

oxygen: O
iron: Fe
potassium: K
nitrogen: N
carbon: C
tin: Sn
hydrogen: H
calcium: Ca
chlorine: Cl
gold: Au
silver: Ag
neon: Ne
sodium: Na
copper: Cu
arsenic: As
krypton: Kr
niobium: Nb
antimony: Sb
polonium: Po
helium: He
livermorium: Lv
flerovium: Fl
copernicium: Cn
darmstadtium: Ds