Answer:
Temperate Grasslands
Explanation:
Tundras have nothing to do with grass. Tundras are more like ice
Answer:
• The Na atom is formed when the Na+ ion gains an electron.
• A Na+ ion has 10 electrons and a Na atom has 11 electrons.
• A sodium atom has one more electron shell than a sodium ion.
• A Na+ ion is formed when a Na atom loses an electron
cannot be cut into smaller pieces
<u>Answer:</u> The other isotope is 
<u>Explanation:</u>
Beta decay is defined as the decay process in which a neutron gets converted to a proton and an electron.
In this decay process, beta particle is emitted. The emitted particle carries a charge of -1 units and has a mass of 0 units. The released beta particle is also known as electron.
The general equation for the beta decay process follows:

The chemical equation for the beta decay of an isotope that produces Sr-87 isotope follows:

The isotope that undergoes beta decay to form Strontium-87 isotope is Rubidium-87
Hence, the other isotope is 