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Atoms

Test Description: FCAT Practice

Instructions: Answer all questions to get your test result.

1) Consider a wooden chair and a balloon. What do these two objects always have in common?

ABoth are made of the same number of atoms BBoth have the same mass number CBoth are made of the same kind of atom DBoth are made of atoms

2) Consider a wooden chair and a balloon. What do these two objects always have in common?

ABoth are made of atoms BBoth have the same mass and weight CBoth are made of wood DBoth have the same electrical charge

3) Shona knows that two atoms have the same number of protons. What else can she assume about the two atoms?

AThey have the same number of neutrons. BThey have the same mass number. CThey have the same chemical properties. DThey have the same electric charge.

4) An atom of vanadium (V) has 23 protons and 28 neutrons. How many electrons does a neutrally charged atom of vanadium have?

A28 B23 C51 D5

5) Any atom that has 13 protons is an aluminum atom. Which statement best describes what would happen if a proton were added to an aluminum atom?

AThe atom would lose electrons BThe atom would no longer be aluminum. CThe atom would have a negative charge. DThe atom would have a smaller atomic number.

6) Mike is drawing a model of an atom. He will draw the electron cloud first, and then he will draw the nucleus. Where will he draw the nucleus of the atom?

Aon the outer edge of the electron cloud Bbetween the center of the atom and the electron cloud Cin the center of the atom, surrounded by the electron cloud Damong the electrons in the electron cloud

7) Angelo drinks a large glass of water every morning when he wakes up. Which statement best describes the chemical makeup of the water Angelo drinks?

At is made up of a single atom composed of protons, neutrons, and electrons. BIt is made up of protons and neutrons arranged in a repeating pattern. CIt is made up of an electron cloud surrounding a dense nucleus. DIt is made up of many molecules containing atoms joined together by chemical bonds.

8) Which of these statements describes a fact about an atom’s nucleus?

AIt is the same size in all atoms. BIt is made of neutrons and protons. CIt is smaller than an electron. DIt is negatively charged.

9) Which of these statements describes a fact about an electron cloud?

AIt is made up of electrons and neutrons. BIt is the most massive part of an atom CIt is where an atom’s electrons are found. DIt is located in the center of an atom’s nucleus.

10) What is the smallest particle of an element that has all the chemical properties of the element?

Aelectron Bnucleus Cmolecule Datom

11) Atoms are a basic building block of certain types of matter. Atoms make up the elements that combine to form compounds to make up much of what we use every day. Which of these substances is NOT made out of atoms?

Aprotons Bcarbon dioxide Ctrees Doxygen

*select an answer for all questions

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