Chem U1.2 PTable Test Review (2)

When calcium (Ca) loses two electrons, it becomes a positively charged ion known as a...

When phosphorus (P) gains three electrons to reach its full set of 8, it is known as a negatively charged ion also called a(n):

This historical figure initially created the idea of the atom in Ancient Greece.

This historical figure formulated the 'plum pudding' model of the atom.

This historical figure proposed that electrons orbit the nucleus like planets around the sun.

Identify the element with this configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d²

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The element in the 5th period (row) with 5 valence electrons is called...

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

As wavelength increases, ____ decreases.

Tags

NGSS.HS-PS4-1

Astatine (At) is in which block of the periodic table?

As frequency increases, energy ____.

Tags

NGSS.HS-PS4-1