Staking is a process of receiving profit for owning and holding cryptocurrency, validating transactions or setting up a node.
To get transactions validated they should be approved and added to a block by miners in Proof-of-work blockchains, like Bitcoin, or get approved by validators in Proof-of-Stake blockchains. Proof-of-Stake (PoS) is a consensus algorithm, where you can stake your coins and receive rewards for transaction validation or receive dividends for holding funds.
Atomic Wallet allows you to interact with different blockchains in a secure and decentralized way. You will be able to stake your holding and receive passive income using Atomic Wallet.