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Periodic Table

What is the process that creates an ion called?

Ionization

What is a positive ion called?

cation

What is a negative ion called?

anion

As you move down a group, what happens to ionization

energy?

decreases

Which element has the highest ionization energy?

Helium

Why does atomic radii decrease as you go from left

to right across a period?

increasing nuclear charge

True or false. Ionic radii and atomic radii trend in the

same manner.

true

True or false. Cl- anion is larger than a Cl neutral atom

true

How many diatomic elements can you

name?hydrogen, nitrogen,

oxygen, fluorine, chlorine, bromine,

iodine

Which element has the electron configuration

1s22s22p63s23p64s23d104p3?

Arsenic, As

Which element is the most electronegative?

fluorine

Which element is the least electronegative?

francium

What is the definition of ionization energy?

The energy required to remove one electron from a neutral atom

What is the definition of electron affinity?

The energy produced when an electron is added to neutral atom

Why does ionization energy increase from left to right

across a period?

increasing nuclear charge

A horizontal row in the periodic table

period

Vertical column in the periodic table

group

Who arranged the elements according to atomic mass?

Mendeleev

Elements within a group have a similar number of ________.

Valence electrons

True or false. Cations form when an atom gains electrons.

False

Who arranged the elements according to atomic number?

Moseley

The modern periodic table is arranged by atomic _______.

number

Who developed the concept ofelectronegativity?

Linus Pauling

Poor conductor of electricity … metals or non-metals?

non-metals

What sublevels are filling across the transition metals?

d-orbitals

What sublevels are filling across the inner-transition

metals?

f-orbitals

A positive ion is (larger/smaller) than its parent atom?

smaller

An element with both metallic and nonmetallic properties is called a _________?

Metalloid or semimetal

Group 17 (7A) elements are known as ….

halogens

Alkali metals react violently with what substance?

water