Periodic Table
The periodic table is arranged by increasing atomic mass of the elements. True or False?
False
This is the unit most commonly used to express atomic mass.
What is the atomic mass unit (amu)?
What Chlorine-36+1 is considered.
What is an ion?
Atoms of the same element that have a different number of neutrons.
What are isotopes?
The mass number for Carbon-15
What is 15?
Columns on The Periodic Table are called ________, while rows are called ________.
What are Groups, Periods?
Chlorine has two main isotopes: Cl-35 (75.77%) and Cl-37 (24.23%). This is the average atomic mass of chlorine to two decimal places.
What is 35.48 amu?
An ion is formed when an atom gains or loses these.
What are electrons?
The most reactive nonmetals.
What are halogens?
How many protons and neutrons does the isotope, Hydrogen-2 have?
1 proton and 1 neutrons
The four different types of information about each element we can collect from the periodic table.
Silver-107 has an mass number of 106.9 with 70% abundance. Silver-109 has a mass number of 108.9 with 30% abundance. Find the weighted atomic mass in this situation.
What is 107.5?
The charge on a sodium ion (Na⁺) is this.
What is +1?
The most abundant element in the Earth's crust.
What is oxygen?
Electrons are made up of small particles called quarks. True or False?
False.
The group on the far right hand side of the periodic table have a special name.
What are noble gases?
If isotope A has a mass of 10 amu and 75% abundance, and isotope B has a mass of 11 amu and 25% abundance, the average atomic mass is approximately this.
What is 10.25 amu?
Silver (Ag)- 107 has an atomic number of 47 and a charge of +2. How many protons, neutrons, and electrons does it have?
47 protons, 60 neutrons, 45 electrons
Elements that are solids and semi-conductors. They have properties of metals and non-metals.
What are metalloids?
Lead has an atomic number of 82 with 125 neutrons. What would its atomic mass be?
207
Category on the Periodic Table that are poor conductors, gases at room temperature, and solids tend to be brittle.
What are nonmetals?
An element has two naturally occurring isotopes. One is 20.013 amu and is 19.9% abundant. The other is 22.01 amu and is 80.5% abundant. Find the average atomic mass.
What is 21.7 amu?
The number of protons, electrons, and neutrons in Copper-64+2.
What is 29 protons, 27 electrons, and 35 neutrons?
The most abundant metal in the Earth's crust.
What is aluminum?
If Chlorine has an atomic number of 17 and a mass number of 34, how many protons, neutrons, and electrons does it have?
17 protons, 17 neutrons, and 17 electrons