1.
How many electrons does the following atom have?
Explanation
The electrons are the red dots that are around the nucleus of the atom.
2.
How many Neutrons does the following atom have?
Explanation
The neutrons are in the nucleus. They are the particles with no charge.
3.
How many protons does this atom have?
Explanation
Protons are in the nucleus of an atom. They have a positive charge.
4.
What is the name of this atom?
Explanation
Look at the number of protons. The number of protons is the atomic number of the element. This element has 9 p+. The atomic number is 9, so the element is Fluorine.
5.
How many electrons does the following atom have?
Explanation
The electrons are the red dots that are around the nucleus of the atom.
6.
How many electrons does this element have?
Explanation
The black dots are the electrons. They are around the nucleus of the atom in the electron clouds.
7.
How many neutrons does this atom have?
Explanation
The neutrons are the blue dots in the nucleus of the atom. They have no charge.
8.
Type question here. Example: Practice makes you ________
9.
How many protons does this atom have?
Explanation
The protons are the red dots in the nucleus. They have a positive charge. Note, if your wrote 4 p+, your answer is correct.
10.
What is the name of the atom pictured?
Explanation
The proton number is the atomic number. Since there are 4 protons, the atomic number is 4. Making this atom: Beryllium
11.
What is the element symbol for Chromium?
Explanation
The element symbol for Chromium is Cr.
12.
What is the element symbol for Antimony?
Explanation
The element symbol for Antimony is Sb.
13.
What is the element symbol for Krypton?
Explanation
Krypton is a chemical element with the symbol Kr. The symbol "Kr" represents the element in the periodic table and is derived from its name. Krypton is a noble gas and is found in trace amounts in the atmosphere. It is known for its characteristic bright, colorful glow when electrically stimulated.
14.
What is the element symbol for Cesium?
Explanation
Cesium is a chemical element with the symbol Cs. It is a soft, silvery-gold alkali metal. The symbol Cs is derived from the Latin word "caesius," which means sky blue, referring to the blue spectral lines that characterize the element. Cesium is highly reactive and has various applications in industries such as electronics, atomic clocks, and medical imaging.
15.
What is the name of the element with the symbol Ru?
Explanation
Ruthenium is the correct answer to the question. Ruthenium is an element on the periodic table with the symbol Ru. It is a transition metal and belongs to the platinum group. Ruthenium is known for its high corrosion resistance and is often used as a catalyst in various chemical reactions.
16.
What is the name of the element with the symbol Al?
Explanation
Aluminum is the correct answer because it is the name of the element with the symbol Al. Aluminum is a chemical element with atomic number 13 and symbol Al. It is a lightweight, silvery-white metal that is widely used in various industries due to its low density and high corrosion resistance.
17.
What is the name of the element with the symbol I?
Explanation
Iodine is the correct answer because the symbol "I" represents the element iodine on the periodic table. Iodine is a halogen element with atomic number 53 and is known for its purple-black solid form. It is commonly used in medicine, photography, and as a disinfectant.
18.
What is the name of the element with the symbol Ar?
Explanation
Argon is the correct answer because it is the element with the symbol Ar. Argon is a noble gas that is colorless, odorless, and tasteless. It is found in the Earth's atmosphere and is used in various applications such as lighting, welding, and as a protective gas in the production of metals.
19.
How many Protons does Lithium have?
Explanation
Lithium is a chemical element with the atomic number 3, which means it has 3 protons in its nucleus. Protons are positively charged particles found in the nucleus of an atom. Therefore, the correct answer is 3 protons.
20.
How many Protons does Gallium have?
Explanation
Gallium has 31 protons. This is because the atomic number of an element corresponds to the number of protons in its nucleus. Since Gallium is an element, its atomic number is 31, which means it has 31 protons.
21.
How many Protons does Neon have?
Explanation
Neon has 10 protons because the atomic number of an element represents the number of protons it has. Neon has an atomic number of 10, which means it has 10 protons in its nucleus. Protons are positively charged particles and are one of the fundamental building blocks of an atom.
22.
How many Protons does Bismuth have?
Explanation
Bismuth is an element with atomic number 83, which indicates the number of protons in its nucleus. Therefore, Bismuth has 83 protons.
23.
How many electrons does Calcium have?
Explanation
Calcium is an element with atomic number 20, which means it has 20 protons in its nucleus. In a neutral atom, the number of electrons is equal to the number of protons. Therefore, Calcium has 20 electrons.
24.
How many electrons does Bromine have?
Explanation
Bromine, with atomic number 35, has 35 electrons. The atomic number represents the number of protons in an atom, and since atoms are electrically neutral, it also represents the number of electrons. Therefore, Bromine has 35 electrons.
25.
How many electrons does Niobium have?
Explanation
Niobium, with an atomic number of 41, indicates the number of protons in its nucleus. Since atoms are electrically neutral, the number of electrons in an atom is also equal to its atomic number. Therefore, niobium has 41 electrons.
26.
How many electrons does Hydrogen have?
Explanation
Hydrogen has one electron because it is the first element on the periodic table and has an atomic number of 1. The atomic number represents the number of protons in the nucleus of an atom, and since atoms are electrically neutral, it also represents the number of electrons. Therefore, hydrogen, with an atomic number of 1, has one electron.
27.
How do you calculate the number of neutrons in an atom?
Explanation
The number of neutrons in an atom can be calculated by subtracting the atomic number (which represents the number of protons in the nucleus) from the atomic mass (which represents the total number of protons and neutrons in the nucleus). This calculation gives the difference between the two, which corresponds to the number of neutrons in the atom.
28.
What two subatomic particles are found inside the nucleus of an atom?
Explanation
Protons and neutrons are found inside the nucleus of an atom. Protons have a positive charge, while neutrons have no charge. These subatomic particles are responsible for the mass of the atom and are tightly packed together in the nucleus. Electrons, which have a negative charge, orbit around the nucleus in specific energy levels.
29.
What subatomic particle is found in the energy levels of the atom?
Explanation
Electrons are subatomic particles that are found in the energy levels of an atom. They are negatively charged and orbit around the nucleus of the atom. Electrons play a crucial role in determining the chemical and physical properties of elements, as their arrangement in energy levels determines the atom's reactivity and ability to form chemical bonds. Therefore, electrons are the correct answer to the question.
30.
How many Neutrons does Chlorine have?
Explanation
35 (atomic mass) - 17 (atomic number) = 18 Neutrons
31.
How many Neutrons does Boron have?
Explanation
11 (atomic mass) - 5 (atomic number) = 6 neutrons
32.
How many Neutrons does Vanadium have?
Explanation
51 (atomic mass) - 23 (Atomic Number) = 28 neutrons
33.
How many Neutrons does Sulfur have?
Explanation
32 (atomic mass) - 16 (atomic number) = 16 neutrons
34.
The total number of protons and neutrons make up the of an atom?
Explanation
The total number of protons and neutrons in an atom is referred to as the atomic mass or weight. This value represents the combined mass of the nucleus of the atom. The protons and neutrons are the two types of subatomic particles found in the nucleus, and their total number determines the atomic mass. The atomic mass is measured in atomic mass units (amu) and is an important characteristic of an element as it helps in identifying and classifying different atoms.
35.
What number do you look at on the Periodic Table of Elements to determine the number of protons and electrons?
Explanation
The atomic number on the Periodic Table of Elements indicates the number of protons and electrons in an atom. Protons are positively charged particles found in the nucleus of an atom, while electrons are negatively charged particles that orbit around the nucleus. The atomic number represents the unique identity of each element and determines its position on the periodic table. It is a fundamental property of an element and is used to understand the atom's structure and behavior.
36.
Which Scientist created the first Periodic Table of Elements?
Explanation
Dimitri Mendeleev is credited with creating the first Periodic Table of Elements. He organized the elements based on their atomic mass and properties, and left gaps for elements that were yet to be discovered. His periodic table was a significant breakthrough in the field of chemistry as it provided a systematic way of organizing and understanding the elements. Mendeleev's work laid the foundation for the modern periodic table that we use today.
37.
Which Scientist rearranged the Periodic Table and assigned each element an atomic number?
Explanation
Henry Mosley rearranged the Periodic Table and assigned each element an atomic number.