Atoms of the same element that differ in the number of neutrons
Questions and Answers
The center of an atom
The center of an atom
Particles with no charge
Particles with no charge
A pH greater than 7
A pH greater than 7
An ecosystem that is formed where freshwater from a river or stream merges with salt water from the ocean.
An ecosystem that is formed where freshwater from a river or stream merges with salt water from the ocean.
A body of water that’s shallow enough for sunlight to penetrate.
A body of water that’s shallow enough for sunlight to penetrate.
On the left side of the arrow
On the left side of the arrow
How is the abyssal part of the ocean where little or no sunlight can penetrate otherwise described?
How is the abyssal part of the ocean where little or no sunlight can penetrate otherwise described?
Is a chart that shows columns (families) and rows (periods) of elements
Is a chart that shows columns (families) and rows (periods) of elements
A pure substance formed when two or more elements combine.
A pure substance formed when two or more elements combine.