Vocabulary
Trends
Charges
Challenge
Heavy
100
A horizontal row of elements in the periodic table
What is a period?
100
The modern periodic table is arranged in order of
What is increasing atomic number?
100
A positively charged subatomic particle found in the nucleus of an atom
What is a proton?
100
Atoms or groups of atoms that have an electrical charge due to a different number of protons and electrons
What is an ion?
100

What is the element has the smallest atomic size?

Helium

200
The amount of energy needed to remove an electron from a neutral atom
What is ionization energy?
200
As you move down a group of the periodic table, atomic size generally
What is increasing?
200
A negatively charged subatomic particle
What is an electron?
200
The subatomic particle that plays the greatest role in determining the physical properties of an element is
What is the electron?
200

What element has the electron configuration 1s22s22p63s23p2

Silicon

300
The ability of an element to attract electrons when forming a chemical bond
What is electronegativity?
300
The atom with the highest electronegativity on the Periodic Table is
What is flourine?
300
A subatomic particle with no charge and a mass of 1 amu found in the nucleus
What is a neutron?
300
The vertical columns of the periodic table are called
What is groups?
300

Which of the elements has the smallest first ionization energy?

Francium

400

The size of a positive or negative ion

What is ionic radius

400
Which ion has the greater ionization energy: Lithium or Boron
What is Boron?
400
Any atom or group of atoms with a negative charge
What is an anion?
400

Any member of the nonmetallic elements in Group 17 or 7A of the periodic table that are extremely reactive is named

What is halogens?

400

The nonmetals in group 15 or 5A have what charge?

-3

500
The radius of a neutral atom; one half the distance between two like atoms in a molecule
What is atomic radius?
500

Describe the trend of atomic size down a group and across a period?

What is the atomic radii increases down a group and decreases across a period?

500
Any atom or group of atoms with a positive charge
What is a cation?
500

Any member of a group of gaseous elements of the periodic table that are inert and unreactive are called

What is Noble gases?

500
Regions around the nucleus of an atom where electrons may be found are called
What is energy levels?
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