Mina will join Everton on a permanent deal for a fee in the region of £27m, having attracted interest from Manchester United and Lyon earlier in the window.
Colombia defender Mina, who impressed in the World Cup, could eventually cost €31.75million, while Gomes arrives on a season-long loan.
As the 25-year-old finalised his move to Merseyside, Everton also sealed the captures of Barcelona duo Mina and Gomes on Thursday afternoon.
Israel PM defends law in face of Druze outrage
The wave of criticism piles pressure on Prime Minister Benjamin Netanyahu, already beset by corruption allegations. It is at least the thirds challenge filed with the Supreme Court over the law.
Mina, for whom Barca have retained a buy-back option, said the chance to play alongside Gomes and Lucas Digne - who made the same switch last week - played a part in his decision to join Marco Silva's men.
Everton had a dramatic end to the window, wrapping up deals for Bernard - the Brazil global who arrived on a free from Shakthar Donetsk - and Andre Gomes, the Portuguese midfielder who had also been at Barcelona.
The free signing of Brazilian midfielder Bernard was confirmed after a work permit was granted.
One of Mina's goals in Russian Federation was against Everton's England goalkeeper Jordan Pickford to send a dramatic last 16 tie into extra-time.
Indonesia evacuates tourists after Lombok quake kills 91
The Bali and Lombok airports continued operating on Sunday night, according to the director general of civil aviation. In 2004, the Indian Ocean tsunami killed 226,000 people in 13 countries, including more than 120,000 in Indonesia.
He said: "I chose Everton because of all the things I had heard about Marco Silva and after speaking to him I was happy with what he said to me".
'I know about Everton's players and I look forward to being able to play with my new team.
"I have watched the Premier League for a long time".
Mina has signed on a permanent five-year deal worth €30million (approx £27.2million), while Portugal global Gomes has arrived at Goodison on a one-season loan.
Red Dead Redemption 2's first gameplay footage
We catch glimpses of mountains, dense forests, steamy swamps, deserts, dusty cattle towns, more modern cities, and more. A narrator goes over everything throughout the video, explaining important information about what people are seeing.
Tottenham boss Pochettino happy to keep Alderweireld
Then you need to change your mind and think about the team and the collective. "I am not anxious , not sad, I am so happy". If we are happy with our squad and can not improve our squad, sometimes it's better to keep our squad together.
Mobile back to price competition in 'unlimited'
During congestion, Essentials customers may notice speeds lower than other customers and further reduction if using 50GB/month. Most unlimited plans allow you at least 22GB of data before being throttled, while T-Mobile and Sprint hit the brakes at 50GB.
'Multiple Diablo Projects In the Works,' Confirms Blizzard
It's unclear what the multiple Diablo projects could be, but the one that's going to take longer to develop might be Diablo IV . So whether you're a veteran to the franchise or a newcomer, there's going to be an announcement that everyone can enjoy.
Yellow Warnings Issued As Heatwave Grinds To A Halt
Ms Diamond said: "This means there is an increased likelihood of warmer-than-average temperatures and below-average rainfall". Bookmaker Ladbrokes said the United Kingdom could still see 35C at least once this week before the heatwave ends.