Atoms - Quiz (100%)

*Which statement describes an atomic nucleus?* An atomic nucleus is negatively charged. An atomic nucleus has no electrical charge. An atomic nucleus consists of mostly empty space. An atomic nucleus contains most of the atom's mass.

An atomic nucleus contains most of the atom's mass.

*What do an electron and a neutron have in common?* Each particle has a mass of 1 amu. Each particle exists inside an atom. Each particle has an electrical charge. Each particle is located in the nucleus.

Each particle exists inside an atom.

*Which subatomic particle has the least mass?* electron proton neutron positron

Electron

*Which part of an atom is mostly empty space?* nucleus proton cloud electron cloud neutron

Electron Cloud

*The Venn diagram compares protons with neutrons. Which shared property belongs in the region marked "B"?* Is negatively charged Has mass of 1 amu Orbits the nucleus Is positively charged

Has a mass of 1 amu

*Which is a characteristic of the part of the atom marked "B"?* It is very dense. It has a large mass. It is negatively charged. It is where neutrons move.

It is negatively charged

*What is the main difference between protons and neutrons?* Protons have a much smaller mass than neutrons. Protons have a much larger volume than neutrons. Protons have an electrical charge, but neutrons have no charge. Protons make up the nucleus, but neutrons orbit around the nucleus.

Protons have an electrical charge, but neutrons have no charge.

*How does an atom change if all of its electrons are removed?* The atom's volume increases. The atom's mass increases. The atom becomes positively charged. The atom becomes negatively charged.

The atom becomes positively charged.

*What is most likely true of an atom with a mass of 15 amu?* There are 15 protons. There are 15 electrons. The total number of protons and electrons is 15. The total number of protons and neutrons is 15.

The total number of protons and neutrons is 15.

*Students are completing a table about a particular subatomic particle that helps make up an atom.* What best explains how they should complete the table? with "Inside the nucleus," because the particle is a proton with "Inside the nucleus," because the particle is a neutron with "Outside of the nucleus," because the particle is a proton with "Outside of the nucleus," because the particle is an electron

with "Outside of the nucleus," because the particle is an electron