Unit Test — Unit test

Question 1

Jerome is learning how the model of the atom has changed over time as new evidence was gathered. He has images of four models of the atom, but they are not in the correct order.In what order should Jerome put these models to show the development from the earliest model of the atom to the most recent one?

Revolt · Accepted Answer

Y, X, Z, W

Question 2

What are the two parts of an atom?

Revolt · Accepted Answer

the nucleus and the electron cloud

Question 3

The elements least likely to form bonds are found in which group?

Revolt · Accepted Answer

18

Question 4

When an atom that has no charge loses two electrons, it becomes a

Revolt · Accepted Answer

positive ion.

Question 5

The elements in group 17 of the periodic table are all called halogens. All halogens have the same

Revolt · Accepted Answer

number of valence electrons.

Unit Test — Unit test Answers

More from this Course

TRY EDGENUITY HACKS