I'm quite sure it was Al Secord in 1983.
Wayne Gretzky
There is a point for a goal and assists. There are two assists awarded in hockey for the last two people (on the same team as the scorer) to touch the puck, given the other team did not gain posession in the time between when the scorers teammates had the puck and the scorer scored the goal.
The helmet rule in the NHL was instituted for all new players entering the league in 1979. Existing players had the option to wear a helmet or not. The last NHL player to play helmetless was Craig MacTavish in 1997.
The leading scorer in the 2010/11 season was Daniel Sedin of the Vancouver Canucks with 104 points. Corey Perry of the Anaheim Ducks was the leading goal scorer with 50.
Paul Coffey hold this record with 48 goals on 1985-86 Nhl season. Bobby Orr the 2nd 46 goals on 1974-75 Nhl season. Any other NHL defenseman can't reach the 40th goal/season.
Sidney Crosby
150
Outside of some fantasy-league scoring systems and the NHL's recently-introduced "shoot-out" format, a goal has always been worth exactly one goal (and one point in the goal scorer's point total).
a point is a goal or an assist. You get an assist if you pass the puck to the goal scorer (1st assist) or pass to the person who passes to the goal scorer (2nd assist). All goals and assists count as one point. For the NHL, most goals is the tie breaker for the Art Ross trophy given to the player with the most points.
Jagr?
yes
The current leader for goals and points in active players is Jaromir Jagr with 681 goals and 1007 assits