Using the periodic table, explain why rubidium (Rb) has higher ionization energy than cesium (Cs).
Using the periodic table, explain why rubidium (Rb) has higher ionization energy than cesium (Cs).
What do I already know about periodic trends?
Scientists have observed that atoms in families share the same
What is one characteristic that makes gold so valued for jewelry over metals like nickel and copper?
Select the statements that are considered true.
Using the periodic table, explain why rubidium (Rb) has higher ionization energy than cesium (Cs).
Using calcium’s atomic structure, as shown in the image, what is this element’s atomic number?
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
atomic number | arrow_right_alt | found in a cloud that orbits an atom's nucleus |
neutron(s) | arrow_right_alt | subatomic particles that has a positive charge |
electron(s) | arrow_right_alt | subatomic particles that has no charge |
nucleus | arrow_right_alt | equal to the number of protons |
proton(s) | arrow_right_alt | made up of protons and neutrons |
If a neutral atom of Gallium (atomic number 31) has 39 neutrons in its atomic nucleus, which of the following statements are true?
The reactivity of metals tends to decrease from to across the periodic table. The reactivity of metals also tends to increase as you move within a group.
As you move from left to right in the periodic table, what trend do we see in regard to the density of metals?
How does reactivity change as you move through the periodic table.
Which element is the most reactive with water?
If you combine elements into other substances, the properties of these substances are always the same as the base elements.
Which of the following elements DO NOT have an atomic symbol that matches with the first letter of that element?