Physical Science FInal Exam

Front

Atoms are always moving toward ___________

Back

stability

Front

How many valence electrons does potassium have?

Back

1

Front

Which element was not in Aristotle's model of matter? Options: Earth, Wind, Snow, Fire

Back

Snow

Front

Dalton's model of the atom was _______. Options: Cube, Cloud, Orbital, Sphere

Back

Sphere

Front

The Greeks said that all matter was made of the atom and it _________________.

Back

could not be split

Front

What is the center of the atom?

Back

the nucleus

Front

What is the charge of the nucleus of an atom?

Back

positive charge

Front

Whose model was called plum pudding?

Back

Thompson

Front

What is Titanium's atomic number?

Back

22

Front

Can two different elements have the same atomic number?

Back

No, two different elements cannot have the same atomic number.