The Structure the atom
What is the middle of the atom called
The nucleus
Potassium
K+, 19, 18, and lost one
How many elements are gaseous at room temperature
11
What is the lightest element on the Periodic Table?
Hydrogen
Valence Electrons are
Electrons found in the outer most Ring
This atom has the same number of _______ and _____
Protons and neutrons
Sulfue
S-2, 16, 18, gained two
Which elements are magnetic?
1. Iron, 2. Nickel, 3. Cooper.
What element is used in making superconductors?
Niobium
What are valence electrons of an atom used for?
to bond- for stability.
If you have more Neutrons than protons, does it make the atom positively charged or negative
Negative? You better have got it right or you are not studying.
Sodium
Na, 11, 23, 11, 12, and 11
Where do the gaseous elements tend to be located on the table?
Right side
what is the 56 element on the periodic table?
Barium
Which groups on the Periodic table want to lose electrons? What kind (s) of elements are these groups?
15-17 non-metals
What is the structure of an atom?
An atom contains subatomic particles called protons, neutrons, and electrons.
Randon
Se, 34, 80, 34, 46, and 34
What is a major element found in chlorophyll?
Magnesium
Who is credited with the creation of the first periodic table?
Dmitri Mendeleev
Covalent Bonds form when
Atoms share valence electrons
Describe the structure of an atom?
Atoms are the smallest building blocks of all matter that exists. Atoms make up elements, and every element is made of only one type of atom. Atoms bond with each other to make compounds and molecules.
Rubidium
Rb+, 37, 36, and lost one
what is a major element found in eggs?
Sulfur
What element is used to make the filament in x-ray tubes?
Tungsten
Ionic Bonds form when
Oppositely charged ions are attracted to each other.