Atoms
True or False?
Atoms can be divided into smaller particles.
False
Atoms are the smallest amount of a substance.
Name the 4 blood groups.
A, B, AB, O
What is the common name of this molecule: H2O
Water
True or False?
Different types of atoms are called elements.
True
What is the name of the center of the atom?
Nucleus
Which blood group can donate blood to any of the other groups safely?
Group O
What is the name of this molecule: CO2
Carbon dioxide
Look at the periodic table. How many protons does sulfur have?
16
What is the charge of an electron?
Negative
What is the name of the protein on the surface of blood cells?
Antigen
What is the definition of a molecule?
Two or more atoms bonded together.
Each element in the periodic table is represented by one or two letters, which is called a ____________ .
What is located inside the nucleus of an atom?
Protons and Neutrons
What is the name of the substance found in blood that recognizes an antigen on the surface of blood cells.
Antibody
What kind of link exists between the atoms of a molecule?
Chemical link
What does the family number (column) tell you about an element?
The number of electrons it has in its last orbital.
Where in the atom are electrons located?
In orbitals around the nucleus
What is the correct scientific term for the coagulation of blood when an antibody finds a matching antigen?
Agglutination
Is NaCl an element, molecule, compound or more than one of these?
It is a molecule and a compound
What does the period number (row number) tell you about an element?
The number of orbitals it has