Challenge Atomic Structure & Periodic Table 2022

Which pair of elements would have similar properties due to the position in the periodic table?

A column on the periodic table can also be called a ________ or a ___________.

Groups on the periodic table are arranged

Atoms of the same element that have a different number of neutrons are called ____________.

To become a negative ion, an atom must ____________.

Which subatomic particles are located inside the nucelus of an atom?

The average mass of all the isotopes for a given atom is called ___________.

Group 1 elements are also called ____________.

Elements in groups 3 - 12 are called ___________.

How many periods are there in the periodic table?

The number of protons an atomc contains is identified by the ____ ____ on the periodic table.

Who organized the first periodic table based the elements' atomic masses?

Elements with an atomic number higher than __ are not found naturally.

Elements that have chemical and physical properities of both metals and nonmetals are _____.

The modern periodic table, which is based on atomic number, was developed by ________.

Valence electrons are located _________.

How are elements in the periodic table organized?

Elements in group 17 are called ____________.

Most elements on the periodic table are classified as __________.

Which listing below shows the proper charges of the subatomic particles?

How many neutrons does Rb-85 contain?

A row on the periodic table is also called a ________.

An atom, as shown on the periodic table, is neutral because it contains equal numbers of

Which group on the periodic table is the most reactive?

Which group of elements on the periodic table are all gases at room temperature?

Transition metals are located in which sub-shell or orbital block on the perioidic table?

Carbon-13 and Carbon-14 are examples of _______________ for the carbon element.

To become a positive ion, an atom must ___________ .

Which group includes some of the most familiar elements like nickel, iron, and copper?

Which group on the periodic table is the most reactive?

Halogens are found in what sub-shell or orbital block on the periodic table?

Elements on the modern periodic table are arranged according to their _________.

Each horizontal row on the periodic table is called what?

Which accurately describes nonmetals?

Which group of elements is un-reactive?

The sum of the number of protons and neutrons inside the nucleus is called the __________.