Atomic Structure
What is the center of an atom called?
What is the nucleus?
What does the atomic number represent?
What is the number of protons?
What is the chemical symbol for oxygen?
What is O?
True or False: Atoms are the smallest unit of matter.
What is true?
What does the pH scale measure?
What is how acidic or basic a substance is?
Which subatomic particle has a negative charge?
What is the electron?
What is the name of the vertical columns on the periodic table?
What are groups or families?
What element has the symbol Na?
What is sodium?
What element has the symbol Na?
What is sodium?
What number on the pH scale is considered neutral?
What is 7?
How many protons are in an atom of carbon?
What is 6?
What type of element is found on the left side of the table?
What are metals?
Which element has the symbol Fe?
What is iron?
What part of an atom is involved in chemical reactions?
What is electrons?
A solution with a pH of 3 is considered what?
What is acidic?
What two particles are found in the nucleus?
What are protons and neutrons?
What is the name of the horizontal rows on the periodic table?
What are periods?
What element has the atomic number 1?
What is hydrogen?
What is a molecule?
What is two or more atoms bonded together??
Which is more basic: a solution with a pH of 9 or a pH of 12?
What is pH 12?
What is the overall charge of a neutral atom?
What is zero or neutral?
Why are elements in the same group (column) said to have similar chemical properties?
What is What is because they have the same number of valence electrons?
Which gas makes up about 78% of the Earth’s atmosphere?
What is nitrogen?
What is the maximum number of electrons the first energy level can hold?
What is 2?
What happens to the hydrogen ion concentration as pH decreases??
What is it increases?