The elements in Group 1 are called Alkali metals and those are: Lithium, Potassium, Rubidium, Celsium, Francium and Sodium and the elements in Group 4 are called: Titanium, Hafnium, Zirconium and Rutherfoundium.

It's important that group 4 has no trivial name like the group 1 does, it belongs to the grouping of <em>transition metals </em>and those metals have several general properties. They are found in the middle of the periodic table.

3 0

3 years ago

During fertilization, a __________ and __________ combine to form a __________.

xeze [42]

A sperm and egg combine to make a zygote. (or fertilized egg)

So, the answer would be "A".

I hope this helps!
~cupcake

7 0

3 years ago

When does DNA polymerase check for mutations?

marta [7]

Answer:

during DNA replication

Explanation:

During DNA synthesis, when an incorrect nucleotide gets inserted in daughter strand of DNA, DNA polymerase goes back by one nucleotide pair, excises the mismatched nucleotide and repairs error. Thus, the DNA polymerase checks for mutations at the time of DNA replication

3 0

3 years ago