Johnson, who spent seven seasons with Atlanta, had 26 points at the half. He made 11 of 15 from the floor and was 6-for-8 on 3-pointers, including a buzzer-beater to end the second and third periods. The Nets are now 8-3 this season when Johnson scores 20 points. Johnson also had five assists and four rebounds.
The Nets have won six of their last seven games and beat the Hawks for the fourth time in five games. The win clinches the season series against Atlanta for the Nets, who beat the Hawks 91-86 on Jan. 6 in Brooklyn. It was the third overseas win for the Nets, while the Hawks failed on their first attempt.
The Nets (16-22) also got 20 points forward Andray Blatche, who came off the bench and added a season-high 14 rebounds and six assists. Forward Paul Pierce added 18 points and six assists and guard Alan Anderson scored 15 points, including four 3-pointers.
Atlanta (20-19) was led by forward Mike Scott and guard Shelvin Mack, who each came off the bench to score 17 points. Mack was 3-for-3 on 3-pointers and added seven assists. It was a disappointing night for forward Paul Milsap, who was 5-for-14 for 13 points, and guard Jeff Teague, who was 4-for-13 and scored 16.
Brooklyn raced to a 31-27 lead to end the first quarter and continued its hot shooting to take a 65-53 lead at halftime. The Nets shot 54.9 percent in the first half, making 28 of 51 from the floor, with Johnson getting 26 points.
The Hawks didn't shoot it poorly -- 51.4 percent -- but had 16 fewer attempts thanks to Brooklyn's dominance on the boards. The Nets outrebounded the Hawks 21-13.
The Nets continue to pour it on in the second half. They extended their lead to 25 points by the end of the third quarter thanks to Johnson's 3-pointer. The Nets led by as many as 33 points at 111-78 when Blatche made a 21-footer with 9:07 remaining.
NOTES: The Hawks were without G DeMarre Carroll, who did not make the trip so he could be home with his girlfriend for the birth of their daughter. Lou Williams started in his place and picked up the 2,000th field goal of his career. ... Atlanta C Elton Brand moved into 62nd place on the all-time rebound list with his first carom of the Game. Brand passed Terry Cummings with 8,630. ... Nets F Joe Johnson reached the 1,500 milestone for 3-pointers with his second successful attempt in the Game. Johnson has scored 20 or more points in his last four games, the first time he accomplished that feat in his tenure with the Nets. ... Both teams return to the United States for Martin Luther King Day games on Monday. Brooklyn plays at New York and Atlanta hosts Miami. ... Atlanta G Kyle Korver made a 3-point basket in his 108th consecutive game. Korver missed his first seven tries before connecting from the right wing with 8:29 remaining. ... Atlanta G James Nunnally, signed to a 10-day contract on Jan. 11, made his first career basket with 4:31 left in the Game. ... Rock icon Paul McCartney was one the many celebrities who attended the Game.