Identify the following element:
Identify the following element:
Which element is in group 4, period 5
Which element is in group 2, period 2
Which element is in group 6, period 6
Which element is in group 18, period 6
What part of the atom has a negative charge?
What part of the atom has a no charge?
What is found in the center of an atom
What subatomic particles are found in the nucleus? Check all that apply
An electron is found...
Identify the following element:
Identify the following element:
Identify the following element:
Silicon (Si)
Fluorine (F)
Magnesium
Chlorine
Isotopes are _____________.
Select all which are true
How do we calculate the mass number of an isotope?
Select all true for Carbon -15
Select all true for Nitrogen -14
A particle in the nucleus with no electrical charge is known as a(n)
Construct a Bohr model for Carbon
Construct a Bohr model for magnesium
Construct a Bohr model for sulfur
How many VALENCE ELECTRONS are in phosphorus?
Potassium has an atomic number of 19 and a mass number of 39. So, it has _________________neutrons.
In the Periodic Table, the vertical columns that extend down the Periodic Table are called
Hydrogen is located in Group_________of the Periodic Table.
This element has 34 Protons
This element has 8 electrons when it is a nuetral atom.
This element has an average atomic mass of 19
Al has this many protons
Rb has this many valence electrons.
Lithium
Boron
Germanium
Sodium
What metalloid is in period 3?
Identify the properties of metals (select all that apply):
Luster
On the left side of the periodic table
semiconductors
aluminum
brittle
arsenic
What is the oxidation number of nitrogen?
Give an example of an element with similar properties to calcium.
How many VALENCE electrons does fluorine have?