Well-taken goals from Santi Cazorla and Aaron Ramsey, the Wales midfielder's 10th of the season, provided the perfect response from Arsene Wenger's side to questions about their character in the wake of the midweek Capital One Cup exit at home to a second-string Chelsea side.
The Gunners now head out to Germany for a crunch Champions League Group F showdown with Borussia Dortmund, who ran out 2-1 winners at the Emirates Stadium a fortnight ago.
Spain midfielder Arteta, who captained the side again on Saturday, reckons people are now starting to sit up and take notice about what this Arsenal squad are capable of.
"When you are at the top, compared to where we were last season, it is different," Arteta said.
"We have more belief and are starting to create a bit of fear into the opposition. That is giving us a better chance to win the game.
"When you are on a good run and the confidence level is high, it makes everything a bit easier."
Despite beating second-placed Liverpool to record an eighth Premier League win from the opening 10 matches, the pundits continue to doubt whether Arsenal have what it takes to last the distance.
Arteta said: "There are always different opinions. Some people have an unbelievable opinion about us, some others don't trust us.
"But that is normal and we have to prove every week that we are good enough to be where we are."
Arsenal face another stern examination of just what they can achieve in 2014 when they head to the Westfalenstadion for Wednesday night's clash with Jurgen Klopp's well-drilled outfit.
A late goal from Poland forward Robert Lewandowski gave the German outfit victory in north London just when it seemed Arsenal had done enough to fight back and earn a draw.
Arsenal are determined to get a positive result this time around, according to Arteta.
"Dortmund will be a very different game, with the way they play, so we will have to get ready for it," the 31-year-old said.
"We conceded a goal when we were on top in the game, and were likely to score a second to kill the game.
"But we know in the Champions League against those teams you are limited to small chances, and it was our fault."
Three sides are all locked on six points after Napoli beat pool whipping boys Marseille.
The Italian side, coached by former Liverpool boss Rafael Benitez, are set to travel to Dortmund on matchday five before hosting the Gunners in the final round of Group F fixtures on December 11.
Arteta feels the battle for qualification could well go down to the wire.
"When you look at the fixtures at the start of the group, it would have been strange if by the last game you are already qualified given the quality of the teams," he said.
"So I would not be surprised if we need to go there (Naples) and get something."