Groups of the Periodic Table
This element has 1 proton, 1 neutron, and 1 electron.
What is Hydrogen?
The energy required to remove an electron from an atom is the atom's......
What is ionization energy
the number of protons and neutrons added together will result in the atomic _______ number
What is atomic Mass number
A measure of the ability of an atom in a chemical compound to attract electrons from another atom I the compound is called......
What is electronegativity
Which side of the Periodic table would you find non-metals?
right side
Argon, Krypton, and xenon are all......
noble gases
How many protons are in Carbon?
6
When an electron is acquired by a neutral atom, the energy change is called.....
What is electron affinity
Elements in the Boron family all have ____ valence electrons
3
Elements in a group or column in the periodic table can be expected to have similar......
Properties
What element has 21 protons?
Scandium
The distance from the nucleus to the outer edge of the electron orbits is...
atomic radius
Which group has 8 valence electrons?
Noble Gases
Atoms in the same group have similar properties because...
They have the same number of valence electrons
How protons does an atom of oxygen have?
8
as you move left to right on the periodic table, atomic radius will get....
gets smaller
Compared to the alkali metals, the alkaline earth metals are..... a)are less reactive b)have lower melting points c)are less dense d)combine more readily with nonmetals
What is a) less reactive
The most reactive group of the nonmetals have 7 valence electrons. They are known as....
What is halogens