Subatomic Particles
Name the three main subatomic particles found in an atom?
What are protons, neutrons, and electrons?
The center of the atom
What is the nucleus?
Maximum number of electrons in the first energy level
What is 2?
Electrons found in the outermost energy level of an atom
What are valence electrons?
An atom that has gained or lost electrons
What is an ion?
This subatomic particles is negatively charged
The atomic number of an element tells you the number of these particles
What are protons?
The second energy level can hold up to this many electrons
What is 8?
How many valence electrons does oxygen have?
What is 6?
An atom that gains electrons becomes a(n)? An atom that loses electrons becomes a(n)?
What is an anion, cation?
This subatomic particles determines the identity of an element, and is found in the...
What is a proton, found in the nucleus?
The mass number of an atom is found by adding these two particles
What are protons and neutrons?
1s22s22p63s1 has __ total electrons
What is 11?
An element has an electron configuration ending in 3s23p5. How many valence electrons does it have?
What is 7?
Magnesium loses two electrons. What ion does it form?
What is Mg2+
What is electrons, to maintain a neutral charge?
An atom has 17 protons and 20 neutrons. What is its mass number and what element is it?
What Is 37, Chlorine?
What is [AR] 4s1?
Why do elements in the same group have similar chemical properties?
What is because they have the same number of valence electrons?
Sodium forms a +1 ion when it becomes stable because...
What is because it loses 1 valence electron to achieve a full outer shell?
An ion has a 3+ charge and 23 electrons. Determine the number of protons and explain the relationship between the two subatomic particles used to solve it
What is 26 protons, because a +3 charge means 3 fewer electrons than protons?
An isotope has 15 protons, 15 electrons, and a mass number of 32. How many neutrons does it have and what is the isotope notation?
What is 17 neutrons, 3215P
Write the full shorthand configuration for Iron, and determine how many unpaired electrons it has.
What is [AR] 4s23d6, 4 unpaired electrons?
An element belongs to the noble gas family and is located in period 2. Name the element and determine its number of valence electrons, is it stable? why or why not?
What is neon, it has 8 valence electrons and is stable because it has a full outer shell.
A neutral atomic of an unknown element has this shorthand electron configuration: [NE] 3s23p5. It gains one electron. Write the ion formed, its charge, and explain why the electron gained leads to stability.
What is Cl- with a -1 charge, leads to stability because gaining 1 electron completes the octet rule.