diff --git a/library/core/src/sync/atomic.rs b/library/core/src/sync/atomic.rs
index 00e75ec9a2540..77002ef87aa8c 100644
--- a/library/core/src/sync/atomic.rs
+++ b/library/core/src/sync/atomic.rs
@@ -243,7 +243,7 @@ const EMULATE_ATOMIC_BOOL: bool =
 
 /// A boolean type which can be safely shared between threads.
 ///
-/// This type has the same in-memory representation as a [`bool`].
+/// This type has the same size, alignment, and bit validity as a [`bool`].
 ///
 /// **Note**: This type is only available on platforms that support atomic
 /// loads and stores of `u8`.
@@ -272,7 +272,7 @@ unsafe impl Sync for AtomicBool {}
 
 /// A raw pointer type which can be safely shared between threads.
 ///
-/// This type has the same in-memory representation as a `*mut T`.
+/// This type has the same size and bit validity as a `*mut T`.
 ///
 /// **Note**: This type is only available on platforms that support atomic
 /// loads and stores of pointers. Its size depends on the target pointer's size.
@@ -2121,7 +2121,7 @@ macro_rules! atomic_int {
      $int_type:ident $atomic_type:ident) => {
         /// An integer type which can be safely shared between threads.
         ///
-        /// This type has the same in-memory representation as the underlying
+        /// This type has the same size and bit validity as the underlying
         /// integer type, [`
         #[doc = $s_int_type]
         /// `].